Coppermine intergrated into Oscommerce

Very Simple, problem needs to be fixed. I have a Oscommerce store that needs a working gallery and the gallery is already installed, but has some sort of permission error, when uploading a photo. And if you do upload the photo a different way, it does not display on the left menu bar. I can fix this on my own, but I do not have the time so I need a freelancer to fix it. Be prepared to explain what you did (in English), so I know it was done right. This should be fast quick money..if you know php, and mysql..