[eluser]Ckirk[/eluser]
Hi Garry,
As you probably know you'll probably need to give someone access to the source code in order to debug the software.
There are plenty of people around in here that can help you but I don't have experience of hiring anyone here. Perhaps look around, see who's giving good answers and approach them. That should help weed out any novices.
Normally I'd offer but I'm a wee bit snowed under myself. Had a sudden surge of work come at me.
Good luck with the search,
Chris