Panther, will try and help ya real quik.
Step 1, First thing you'll have to shrink the picture down to Dimensions: 48 X 48 pixels
find out where the picture is saved to or save it to "My documents"
Step 2, You need to have the picture uploaded to a site so that a URL is attached to it. You can upload the picture to
www.boomspeed.com they have about 8megs of uploading space for free. Once you have an account with them(free and easy) You click upload on the page and upload the pic you want to boomspeed..
Step 3, Now click the picture you uploaded to Boomspeed and copy/paste the url from the address bar.
Step 4, goto "myspace" then "Preferences" here at the RX and scroll down to Avatar / Picture URL:click edit, then custom avatar and enter the url of the picture from boomspeed, then click submit at the bottum of the page..
Hope that helps
By the way, I'm the orange cat