There was no TrackMaster released in 2006. The first releases were in July 2007.
Busy as a Bee James was not released as a Greatest Moments pack, nor were they around until early 2008. All the new items for 2007 were only released by Tomy in Motor Road and Rail in the UK&EU/AUS, and instead by HiT Toy Company in TrackMaster. They may be marked as Tomy though underneath the chassis instead of HiT Toy Company because they were brand new releases. There were only a few 3-car sets releases in the US as "New Friends" which got broad releases, not to be confused with the other 3-car sets which were exclusive to certain stores in the US (I think Toys R Us?).
Busy as a Bee James was not released as a Greatest Moments pack, nor were they around until early 2008. All the new items for 2007 were only released by Tomy in Motor Road and Rail in the UK&EU/AUS, and instead by HiT Toy Company in TrackMaster. They may be marked as Tomy though underneath the chassis instead of HiT Toy Company because they were brand new releases. There were only a few 3-car sets releases in the US as "New Friends" which got broad releases, not to be confused with the other 3-car sets which were exclusive to certain stores in the US (I think Toys R Us?).