The ATI AGP hoxfix drivers are up on the ATI site, you need to use a download manager to enter a referrer URL of the hotfix page URL, and change the 9-6 download URL to read 9-7.
I have a HD3450 and am looking forward to installing them on my Windows 7 RC box tonight. As the 9.7 PCIe drivers cure the TV3 bug I am hoping the AGP version will do the same. Has anyone tried them out and do they work?
If not I will try and report back.