not2easy - 11:22 pm on Jan 4, 2013 (gmt 0)
Contact them using their contact form or whatever means they supply for visitors to contact them. I would start with a preliminary contact to broach the subject and go by their response. It is not spam to ask a question. If you are planning to research their site it should be easier that way so that you aren't wasting time researching their site if they are dead set against the idea. When you get an encouraging response, then get on the details.