Dan Kershaw, a Program Manager on Team Foundation Server team, posted this note on msdn forum:

"To ensure Team Foundation Server is ready to ship, we are asking you to respond to another survey.  However, this time there is an added incentive. For the first 300 respondents who install Team Foundation Server RC, complete the survey, and submit certain log files, we are offering a special token of our appreciation. For complete details, visit this site.

Update – If the setup was successful, the log files (VSMsi*) are not in the %temp% directory. They are moved to the installation directory. Also, you should probably review the log files before sending them in the event you need to expunge any information that would upset your local IT department, such as server names or IP addresses. Just replace them with X's." <End of Dan's note>

It is very important for us to hear from you so that we can assist you in having a great TFS installation and administration experience.