Photoshop uninstall and reinstall problem

Wondering if anyone can help. I have a Macbok Pro that a previous user had installed a "borrowed" version of Photoshop CS3 on. I have my own legit version that I want to put on so I uninstalled the other version using Appcleaner to make sure that its all cleaned out but when trying to install my own copy along with other Creative Suite programs it says it won't install photoshop as there's a conflict and it already exists.

Not sure what I can do as there's no trace of it left anywhere but the intaller seems to think that it's still there.

Can anyone offer any help, advice or solutions?

Thanks in advance for any help.

Hey there,

I had exactly the same problem. Try:
http://www.adobe.com/support/contact/cs3clean.html

All the best!