vBulletin Manual - Uploading Avatars

This option allows you to upload avatars from your local machine to your webserver.

The following detailed should entered:

Filename - enter the url or path for the avatar or use the Browse button to navigate to the required image
Title - enter a name for the avatar that is to be uploaded
Minimum Posts - enter the minimum number of posts a member needs before they are entitled to use this avatar. If you want to make this avatar available to all users, enter 0 or leave blank
Avatar File Path - enter the location where the avatar should be upload to on you webserver. The file path should be both readable and writeable by your webserver
Avatar Category - lists all the available categories. Select a category that the avatar will be assigned to
Display Order - This determines the order in which the avatars are shown. By default the next display order is assigned and can be changed at a later date

Once all the information has been entered and checked click the 'Upload' button. The avatar will then be uploaded to the specified folder.