Thanks very much for your hard work, there aren't enough thumbs up smileys do do it justice, but here are two anyway....
Just for the record, I got a Blackberry 8800 for 60 Euros off of Ebay Germany (August 2010) which had been previously owned by a businessman, in other words a company phone. They had been using some aol blackberry enterprise server setup, and the phone asked for a password every 10 seconds. I reset it to factory settings thanks to you and it works great now. I am using windows xp sp3 and Blackberry Desktop Manager vers. 5.0.0.11 and it is August 19th, 2010. I didn't need to or have time to remove the battery either.
Hope this helps someone else too.....well done!