I'm trying to get a TF2 custom hud to work, I know I need to move the file folder containing the custom hud scripts to the steam/steamapps/(my account)/teamfortress2/tf but whenever I try to do this I get either "not implemented" or "operation not supported". The former when I find it manually using "browse" and the latter when I type the address in. The only stuff I can find on Google is people having problems modding Minecraft which doesn't exactly sync up to my situation. Any help would be appreciated.
Try unzipping somewhere else then moving it, may be a directory permissions issue.