I have OS 11.4 Up with LXDE, how do i get/install KDE 3.5 for it [Xposted]

Not quite clear to which forum/newsgroup was the best fit. Posted from
NNTPLand. The subject says it. I suspect install-boot-login is slightly
closer, please respond there.

?-)

Do you mean really mean KDE 3.5? Not 4.7?

In that case you can learn more here.