anyone know what this file is for, pspbrwse.jbf, i compared dpdurst with mine and noticed this file in 800_480 folder and in common folder, i had someone trying to use my mod and did not have any luck running it as well as others mod but was able to run dpdurst's mod, what i did was i copied those two files and transferred it to mine and then the user was able to run the my mod with no problems, so how significant is this file?

The pspbrwse.jbf is the equivalent to your Thumbs.db.. The avic has no use for it so it will just waste space. It is generated by thumbnail caching being enabled in PaintShop Pro and then re-zipping those image folders into the data.zip.

I would lay odds on the issues some users are having is due to what they use to unzip your mod. If you use 7zip to compress it, they should use the same to extract it.