I sent this invitation to st...@mozilla.org as well, but in case their
spam filters are set to block @microsoft.com email addresses, I'm
posting here.

I am the Director of the Open Source Software Lab at Microsoft, and I'm
writing to see if you are open to some 1:1 support in getting Firefox
and Thunderbird to run on Vista.

As part of my mission as an advocate for open source applications on
Windows, I've gotten spaces set aside at the Windows Vista Readiness
ISV Lab.  In the past the company has only invited commercial software
developers to these labs.  I'm committed to evolving our thinking
beyond commercial companies to include open source projects, so I went
to the non-trivial effort of getting slots for non-commercial open
source projects.

The lab itself is a 4-day event held in Redmond every week through
December 2006; we provide secure office space for 4 people, hardware,
VPN access, and 1:1 access to product team developers and support
staff.

If you're interested, please send email to sra...@microsoft.com,
jcan...@microsoft.com, and mfran...@microsoft.com - I'm on vacation
through 8/27, but Jamie Cannon and Michael Francisco will help you get
tracked in.

You can learn a little more about my lab on our site,
http://port25.technet.com.