A Minor Fix version of ApexSQL Debug 2008.05.0028 has been posted
Use the following link for downloading
Here are the complete release notes for the new version
Known Limitations:
x64 editions of SQL Server can’t be debugged
About ApexSQL Debug
ApexSQL Debug debugs SQL code directly in SSMS with breakpoints and watches. Debug SQL by viewing parameters and variable changes over time and identifying the exact lines where those changes occurred
March 22, 2010