Also, for Poser the line items are listed as only PZ3 and PP2. I think check boxes for this this software would be more appropriate as there could be PZ3, PP2, CR2, PZ2, HR2, et all, types of files for the various items that can be posted for Poser ranging from characters, poses, hair, clothing items, and many other things. Or just make a it very generic and leave it to the poster to identfy what is contained in the download.

You may also consider for models, textures, and other 'reusable' items to include a place to identify whether it is allowed for Commercial, Non-Commercial, or Public Domain.