Corrected CRowsetIndex

While I'm preparing the release of DesktopSqlCe, I've been rooting out some very old bugs from the code. One of the bugs that was pending a resolution was pointed out to me by an anonymous CodeProject reader. The corrected CRowsetIndex code has now been published on Pocket PC Developer Network. The code is now working and supporting the SqlCeRowset.Seek method (similar to the on in DataReader).