Product license has expired CS3

I had Photoshop CS3, i updated it, then required me to insert serial and activation again ect, like you do on first installtion.. So i wacked out a keygen from here, put all the stuff in, but now everytime i open CS3, it says “Product license has expired.”
I’ve tried renaming the application.sff or whatever its called to .xx, it just told me to reinstall the program..
So i thought stuff it, reinstalled it, now before i enter the new serial and all that, once i load it, it says the same thing. “Product license has expired.”
Any help?
Appreciated
Answer #1
I’ve solved my problem now,
typically i should of google’d first..
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb402003&sliceId=1
Answer #2
i had a look at this and it accepts my serial number from the “adobe cs3 web premium – zwt keygen” but when i press [next] it still kicks up the “product license has expired notice”
does anyone have a different keygen other than the “zwt” version?
please note i have adobe cs3 web premium installed on my pc.
any assistance will be MUCH appreciated
Answer #3
Try this:

1. Uninstall Photoshop CS3 then restart.
2. Reinstall it using the serial/keygen provided.
3. Don’t update. An update will kill your license.
4. Good luck.

Answer #4
just download a KEYGEN