Hi Lizzie - I have been playing with the first kaboom this morning - to no avail! Was just about to ask for a hint - thank goodness you have posted one, I will try it again
I use Winzip and have no problems (Windows 2000 - not sure if that makes a difference?) I am no expert on zipping models but here's what I do:
Create a new custom models folder in explorer and call it GTAm - copy your model files into it.
In the editor on your level, press shift M and type in GTAm - save, etc.
In explorer again, right click on GTMa and zip up in normal way (it will zip it up in custom models directory automatically).
Post your level and zip file in normal way - should be as easy as that. You shouldn't have to tick any folder boxes at all.
Good luck with your next go
