Quoting MommieOfFive:" Thanks ladies for telling me how to do it but I still cant figure it out! oh well."
do you have a facebook?
Go to your facebook and open the picture you want as your BG profile picture.
Right click on the picture with your mouse, go to properties or view image info,
there should be one that says "location" starts with http:// ends with .jpg, copy that link. Then on baby gaga, go to the members tab>my profile home, click on the my personal info tab, paste the link in the box in the change avatar section (if your link is "https" and not "http" you need to delete the "s ro make it be "http")". Then click the I certify box, and then the update button.