Hire one of these:
Cheaper than a lawyer, (its a good attachment to josh's bat) :P
Dependinding on how you licenced it, then you could go after them for using unlicensed software/sourcecode theft i suppose as they have no written permission (ie a license) to use it.
I always do what winni does a 3 milestone payment, i charge 10-25% commitment, another 25% after i show working demo/beta and then the rest upon receipt of signed disclaimer/license. Then i send out the full license version.
Always explain the payment arangements before the project starts.
Cheaper than a lawyer, (its a good attachment to josh's bat) :P
Dependinding on how you licenced it, then you could go after them for using unlicensed software/sourcecode theft i suppose as they have no written permission (ie a license) to use it.
I always do what winni does a 3 milestone payment, i charge 10-25% commitment, another 25% after i show working demo/beta and then the rest upon receipt of signed disclaimer/license. Then i send out the full license version.
Always explain the payment arangements before the project starts.