Something that I wasn’t aware of until now is the fact that if you save a site template in MOSS 2007 it will not work in WSS 3.0.
I found this out the hard way when trying to create a site in WSS based on a template I had created in MOSS. The template uploaded fine but when I tried to create a site I received the following error:
The template you have chosen is invalid or cannot be found.
After further investigation I found that even saving a blank site in MOSS as a site template will give the same error when uploaded into WSS 3.0. In the end I re-created the site template using WSS 3.0 which seems to work fine on MOSS. I guess this makes sense since MOSS is built on WSS, but the error wasn’t entirely intuitive.