FYI...
When generating a new license file for Inventor 2010, the feature code for Inventor 2008 appears to be incorrect. Thus all 2008 Inventor and Inventor Series AutoCAD license requests are denied. My reseller is contacting Autodesk this morning to alert them to this issue.
"55500INVBUN_2008_0F" should be "55000INVBUN_2008_0F"
-Brian Cranston
3/30/09