kde replaced by gnome

I use suse 8.1 with kde 3.0 A few days ago I used Ximian's red carpet [trial] to download Evolution 1.2.2. To do so I had to agree to lose the installed version of gnucash. Does anybody know if there is a compatible [with evolution 1.2.2] version? Recently I noticed that my kde desktop [/home/scn/] has been mostly replaced by nautilus. I wonder if the d/l of evolution 1.2.2 has corrupted the kde? Does anybody know how to get the full kde destop back. I enter /home/scn with the kde desktop selected and it seems to stay kde until evolution opens. All ideas welcome. thanks serge