Wierd stuff happens after kernel recompile...

Hi,

Ok, as a rookie on this dist, I don't want to scream about "bugs", BUT

when applications I just recently installed (emerged) just isn't there 
anymore, then one would wonder...

Here's what: I use the gentoo-sources kernel and wanted to add fat support. 
So I did a makeconfig and added it and recompiled - followed the install 
document (first mounting /boot). After that things went to its present stage, 
apps missing... I first noticed that the /etc/init.d/kde startup script was 
missing when according to the desktop install doc issued 'rc-update add kdm 
default'. It just dis not find anything to add to the runlevel.

I'm not new to linux (been running Debian 2+ yrs) and these kind of things 
don't happen unless two things being me doing something horradicly wrong or 
something is broken. Would someone please guide me towards a functioning 
system? I do not intend to give up, I like the concept of this distro, but 
need it running smootly to learn it right... :)

Thanks, Pontus