Google is your friend. It took me not even two minutes. If you can't find it that way then unfortunately you won't have it as it is pre-release software and not for mass usage yet.
I have the link for the 4.5.0.97 download. I'm not allowed to post it, but if you PM me, well
I downloaded and installed .97 and experienced no known issues as of yet. I tested most apps, everything worked fine. I had to re-enter my reg. code for one app, but other than that the install went smoothly, and no issues with the phone.