Let me start out by declaring that I am no longer an officer or an employee of Uniloc and have not been so since 2007. That being said it is also true that Uniloc has not made a practise of taking other peoples patents and litigating on their behalf.
Even though I have a good friend at the company and know personally many of the shareholders I do not know how to contact the company any more than anyone else.
A good man and former President of the company is a practising IP lawyer and he is the best alternate to sending mail to their registered addresses in Texas or Luxembourg.
His name is Sean Burdick and can be reached at http://burdickpatents.com/sean-d-burdick/
Hope this helps.