I think you dont have mysite as sts3 stands for mysite
Here is a exact issue
http://webcache.googleusercontent.com/search?q=cache:VMcltdpjfm0J:share-point.blogspot.com/2008/11/moss2007-crawl-issue-after-installation.html+&cd=2&hl=en&ct=clnk&gl=in
Perform the steps mentioned in the KB article below to fix this issue:
http://support.microsoft.com/kb/896861
If this helped you resolve your issue, please mark it Answered. You can reach me through http://freeit-support.com/