Some migration issues that still seem to be there:
Renaming issues with system directories. Two I ran into: /etc/trinity/kdm -> /etc/trinity/tdm /opt/trinity/share/apps/kdm -> /opt/trinity/share/apps/tdm
Often both directories exist with different files being placed in different directories. The configuration files mainly look for files in the kdm variants of the directories. I can imagine that kdm/tdm is not the only program that needs attention.
I also still haven't seen the r14 user profile migration script on Ubuntu.
I'm not sure how things are planned exactly now, but I suppose there should be a second script that can be used to perform and diagnose the KDE3->TDE migration on a system level.
Please post some examples of those configuration files looking for kdm rather than tdm.
Thanks!
Darrell