3
xoops version, php version, MySQL version please ;)
also which module version you using? especially wf-downloads.. latest is 3.1 final
and any other information that's relevant.
does your server allow file uploads? is safe_mode enabled etc.
http://www.latterdayconservative.com/modules/wfdownloads/says i don't have permission to access.. is this the problem? cos then i would suggest setting the permissions correctly.
sorry i can't say anythin else right now as i don't really want to have to register in order just to troubleshoot.