I also created a testuser account to make sure that the profile options were working and set my avatar to the same image.
Here are the steps I took for anyone else wondering:
First, to obtain the link to the image I wanted, I visited the one provided above:
http://s58.photobucket.com/albums/g280/cuzimdamommy/?action=view¤t=Meandmyraiden.jpgFrom here (in firefox), I right clicked the picture and chose 'View Image' from the context menu which provides me with a link directly to the image:
http://i58.photobucket.com/albums/g280/cuzimdamommy/Meandmyraiden.jpgNext, I selected profile in the options just above the forum breadcrumbs (Autism in Wichita Falls > General Category > etc...)
From this screen, on the left under "Modify Profile", there is a link called Forum Profile Information. Click this and move the radio bullet to "I have my own pic" and paste the url that links directly to the image you want to use in the box to the right. When you are finished, click the change profile button below and you should be all set.
Let me know if this doesn't work.