Code:
su
zypper refresh
Recupero dei metadati del repository 'openSUSE-11.4-Update' [\]
Impossibile scaricare /repodata/repomd.xml da http://download.opensuse.org/update/11.4/
Annullare, riprovare, ignorare? [a/r/i/?] (a):
Basically it's saying:
Code:
Recovering metadata from repository 'openSUSE-11.4-Update' [\]
Impossible download /repodata/repomd.xml da http://download.opensuse.org/update/11.4/
Abort, retry, ignore? [a/r/i/?] (a):
The file which can't download it's not one, there are many.

I've disabled all repository and leaved only repo-update, oss and non-oss as the guide suggest.
As it wasn't working for the above mentioned problem, I've tried to leave only the Update one enabled, though without results.

Code:
zypper repos --uri                                                         
#  | Alias                                               | Nome                                                  | abilitato | Attualizza | URI                                                                                                         
---+-----------------------------------------------------+-------------------------------------------------------+-----------+------------+-------------------------------------------------------------------------------------------------------------
1  | Packman Repository                                  | Packman Repository                                    | No        | S         | http://ftp.uni-erlangen.de/pub/mirrors/packman/suse/11.3                                                    
2  | download.opensuse.org-Extra                         | openSUSE BuildService - KDE:Extra                     | No        | S         | http://download.opensuse.org/repositories/KDE:/Extra/openSUSE_11.3/                                         
3  | download.opensuse.org-STABLE                        | openSUSE BuildService - OpenOffice.org                | No        | S         | http://download.opensuse.org/repositories/OpenOffice.org:/STABLE/openSUSE_11.3/                             
4  | download.opensuse.org-UpdatedApps                   | openSUSE BuildService - KDE:UpdatedApps               | No        | S         | http://download.opensuse.org/repositories/KDE:/UpdatedApps/openSUSE_11.3/                                   
5  | download.opensuse.org-filesystems                   | openSUSE BuildService - filesystems                   | No        | S         | http://download.opensuse.org/repositories/filesystems/openSUSE_11.3/                                        
6  | download.opensuse.org-mozilla                       | openSUSE BuildService - Mozilla                       | No        | S         | http://download.opensuse.org/repositories/mozilla/openSUSE_11.3/                                            
7  | download.opensuse.org-openSUSE_11.3_Update_standard | openSUSE BuildService - Virtualizzazione (VirtualBox) | No        | S         | http://download.opensuse.org/repositories/Virtualization:/VirtualBox_backports/openSUSE_11.3_Update_standard
8  | download.opensuse.org-packages                      | openSUSE BuildService - Java:packages                 | No        | S         | http://download.opensuse.org/repositories/Java:/packages/openSUSE_11.3/                                     
9  | download.opensuse.org-perl                          | openSUSE BuildService - devel:languages:perl          | No        | S         | http://download.opensuse.org/repositories/devel:/languages:/perl/openSUSE_11.3/                             
10 | download.opensuse.org-python                        | openSUSE BuildService - devel:languages:python        | No        | S         | http://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_11.3/                           
11 | download.opensuse.org-standard                      | Repository principale (Contrib)                       | No        | S         | http://download.opensuse.org/repositories/openSUSE:/11.3:/Contrib/standard/                                 
12 | ftp.uni-erlangen.de-suse                            | Packman Repository                                    | No        | S         | http://ftp.uni-erlangen.de/pub/mirrors/packman/suse/11.3/                                                   
13 | openSUSE-11.3_11.3-1.82_1                           | openSUSE-11.3-Debug                                   | No        | S         | http://download.opensuse.org/debug/distribution/11.3/repo/oss/                                              
14 | openSUSE-11.4-Non-Oss                               | openSUSE-11.4-Non-Oss                                 | No        | S         | http://download.opensuse.org/distribution/11.4/repo/non-oss/                                                
15 | openSUSE-11.4-Oss                                   | openSUSE-11.4-Oss                                     | No        | S         | http://download.opensuse.org/distribution/11.4/repo/oss/                                                    
16 | openSUSE-11.4-Update                                | openSUSE-11.4-Update                                  | S        | S         | http://download.opensuse.org/update/11.4/                                                                   
17 | openSUSE-11.4_11.3-1.82                             | openSUSE-11.4 11.3-1.82                               | No        | S         | http://download.opensuse.org/source/distribution/11.4/repo/oss/                                             
18 | opensuse-guide.org-repo                             | libdvdcss repository                                  | No        | S         | http://opensuse-guide.org/repo/11.3/
NOTE: "abilitato" means "enabled" and "nome" is "name


I've also tried to download DVD iso but I'm getting boring conflict error, that take more than 20 minutes to be "dispatched" away.
I've also tried the online guided update, but it redirects me this url: https://secure-www.novell.com/center...c77c78e68ce669 and I'm stucked here; I've tried to login (I was already registered) and then register a society, but it doesn't work and the Yast-guided-update-thing shows the "please register here and press Continue button" message, in an infinite loop.

My openSUSE is "clean", in the sense that I've only installed Opera, VirtualBox, skype and Xen.