The Windows 7 Beta was to have been released to the general public and you were to get the beta through the Windows 7 page at Microsoft.com http://www.microsoft.com/windows/windows-7/. Having went to the page and looking around, I clicked on IT Pro. From there a page comes up and says basically that the interest in Windows 7 was so great that were experiencing some problems because of the heavy traffic. They will be adding more resources so that the download experience will be better and then will be posting the beta. Check out this link to the Windows 7 Team Blog for the latest information.
If you went to TechDays here in Canada, remember that free TechNet subscription you received in your box of Techie Crunch? Well, here is a chance to get some value from it. Go hit the TechNet site and download Windows 7 from there.
If you don’t have a TechNet or MSDN subscription sit tight and know you will be able to get it soon. Apparently, Windows 7 was showing up before the beta went live in the torrent streams, but it wasn’t the correct version in some cases, as you can see in this post on Softpedia . My suggestion is to wait it out and get the correct version straight from Microsoft. Don’t waste your time and bandwidth downloading something that may be no good, or worse, tampered with and made into a security risk.