If you want me to, I can resize your avatars to fit, just put them in your next post by clicking on the "Click here to upload!" just bellow the message box when you post your reply. I can then resize and repost them the proper size for you, then you can save them and put them as your avatar.
Here you go, I resized the purple R/T you wanted as you avatar so you can use it as such:
[IMG]local://upfiles/193/6685E3F320454361B478747AD49882D5.jpg[/IMG]