Just some simple rules you should follow before using this forum:
1. NEVER send money to anyone from this forum (or any other forum) for software/script/services, until you actually got the software/script.
2. If you still dont want to go with Rule 1, then use a Escrow site for the transaction.
3. If Rule 1 and Rule 2 dont apply to you, then use a money processing company (credit card provider, paypal, whatever) that will allow you to open a dispute and refund you the money if the transaction doesnt go as expected.