First, make sure it's 145x145 in size and/or no larger than 10KB in size. It seems hunting.net won't let you remotely link your avatar, so you have to save it to you computer and upload it. So in photobucket, open up the RESIZED picture you want...right click on it and choose Save Picture As and save it somewhere that's easy to remember (just save it to your desktop). Then go into your profile on here, and in the section where you choose your avatar, click upload my picture (will replace the existing one). Then simply click browse in the window that pops up, locate the file you saved to your desktop, click on it, select open, then click ok, and you're done.