He he he...don't feel bad. LiteStep takes some getting used to. I suggest you make certain the theme's that don't work are OTS compliant first of all. Check the readme file, then, check that the ".thm" file in the theme folder has the following line "step.rc" and it is exactly like that. Some themes end up with it saying something like "stttep.rc" so the LSTS or LSCP can't read where or what the theme's step.rc file is. Might be something to do with your computer operating system, what kind of setup do you use? How much memory, what type of processor, etc...

Hope this helps...and don't be afraid to ask for help, there are a bunch of great folks on this site...