replace a user picture

[Beekeeper]

I have a user who has uploaded a 40 year old picture that is poor quality, the user does not have the ability to improve the picture , so I have downloaded it to photoshop and improved its quality but as it can not be ftp into the user album and I cant find anything on the forum that tells me how to replacing  a picture in a user album , I am reluctant to risk doing anything wrong
Some advice on how I should replace the existing picture with the new one be appreciated

[Αndré]

http://forum.coppermine-gallery.net/index.php/topic,60499.0.html

[Beekeeper]

Thanks for that it has solved my problem