Billu,
I'd expect your Elance contractors to give you full installation details! If not, don't pay them! ;)
I'd need some more information - lots of specifics about what sort of configuration they did, what sort of script or module they created for you, what issue you needed solved, etc.
Hmmm, If you're just asking where to run an SQL script - you can do that in the 'host' admin menu, under the SQL menu option. Or if you own the server, you can use SQL Server Management Studio.
Cheers, Lance