I've never really had any problems with OTS2 themes. I do have a few themes that wouldn't install, but i think thats the "mayor bug" I have also run into the incorrectly named dll's but nothing that a simple theme edit, or rtclick on the module and browse to the dll didn't fix. Alot of the incorrectly named dll's i already had downloaded from other themes. One thing that might help is making it more obvious that you can browse to existing dll from the netload download window. To credit OTS2 I've had about a 90% sucess rate with OTS2 themes where as I had maybe 40% sucess rate pre OTS.