Mediatomb help plz

Ive been trying to get mediatomb-0.11.0-0.pm.4.i586 installed… but when i try installing it i get a error…

Package /home/trilli/Desktop/mediatomb-0.11.0-0.pm.4.i586.rpm could not be installed.

Details:
Subprocess failed. Error: RPM failed: warning: /home/trilli/Desktop/mediatomb-0.11.0-0.pm.4.i586.rpm: Header V3 DSA signature: NOKEY, key ID 9a795806
error: Failed dependencies:
mediatomb-dbbackend is needed by mediatomb-0.11.0-0.pm.4.i586

so i tried installing the mediatomb-mysql-0.11.0-0.pm.4.x86_64
and i now i get

Package /home/trilli/Desktop/mediatomb-mysql-0.11.0-0.pm.4.x86_64.rpm could not be installed.

Details:
Subprocess failed. Error: RPM failed: warning: /home/trilli/Desktop/mediatomb-mysql-0.11.0-0.pm.4.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 9a795806
error: Failed dependencies:
mediatomb = 0.11.0 is needed by mediatomb-mysql-0.11.0-0.pm.4.x86_64
libavformat.so.52()(64bit) is needed by mediatomb-mysql-0.11.0-0.pm.4.x86_64
libavutil.so.49()(64bit) is needed by mediatomb-mysql-0.11.0-0.pm.4.x86_64
libjs.so.1()(64bit) is needed by mediatomb-mysql-0.11.0-0.pm.4.x86_64

plz can someone help me get the missing packages.

Are you installing outside of the installer? Add the Packman repo to your software installer, and install from there.