Paul Thurrott has published an update on Windows Vista Interim Build and Beta 2

Last week, I reported that Microsoft was prepping a Windows Vista interim build to deliver to beta testers and Technology Adoption Program (TAP) partners. That build has been delayed, but is still coming: Microsoft now plans to ship Vista build 5365 within the week.

Curiously, after posting my report last week, a number of other Web sites posted information about an interim build, including screenshots purporting to be of Vista build 5361. I have no information about the validity of those reports, but I can tell you that build 5365 is still happening, and will be delivered soon. Reports that the interim build is not happening are false.

Windows Vista Interim Build, Beta 2 Update