Just thought I would jump on and say that everything is now working perfectly. It took a few hours to work out what the problems were but now all is fine.
Many people buy TK-102B from eBay. ie. #begin#123456# format
These are GT06 compatible and need port 20281 on GPS Trace Orange.
Make sure you select the 'Vehicle Trackers' when adding a unit. GT06 is not listed in Personal Trackers.