Ive been having this big problem with proftpd. Ive been trying to fix it for a while now but can't seem to figure it out, ive also had my admins look at it.

When a user is trying to overwrite a file it is giving them permission denied. So first off I said how bout I try some chmods so I tried 777 775 o and o+w, those didnt work. So I tried to chown the dir to that user, that still did not work.. |

Any Ideas?

Did you also "chown" the files?
use chown user.group ./DIRECTORY -r

Try that and let me know...