Some ideas in a different vein...

I have noticed that some OTS compliant themes are a bit messed up when installed by LSTS. It usually has something to do with the zip file creating extra directories placing the modules etc. one or two levels deeper than the paths specified in the step.rc

Also there is the "stdtep.rc" bug in LSTS. Check the theme config info in LSTS to make sure it's trying to load the properly named file.

90% of the problems I've found with themes not loading are caused by these two things. Easy enough to fix...

Cheers,
Dave