Need help finding a part to make this work...

[HeManster03]

Alright bluray.com community I need some help. First thing I want to say is that this is not for me, but a friend that is very technically uninclined. I tried to solve this myself but have had little success. Here is the problem...
He has an older model RCA rear projection HDTV(Component/DVI are the 2 HD inputs he has) and recently got him self a new Xbox 360 with rca/HDMI only hookups. He is also getting a blu ray player in the near future(I am selling my old one to him when I get my new one in a month or so) and he wants to take advantage of the HD. Thats where my issue comes in. He needs an adapter that will take the HDMI signal from the source to a DVI input. The DVI input is the DVI-Dual Link port(has 8 columns of 3 prongs all bunched together then it has a sideways slot at the other end.) I looked on monoprice and can find the singles but no duals. The only place I can find one is http://www.consoleshop.com/product.php?productid=17055 and it won't let me register to purchase the darn thing. Can someone else help me find another place to get this, or possibly recommend another option that we can use. I also know that "buy a new tv" will come up and that is in the cards for him around summer time, which is why we are looking for a relatively inexpensive temporary resolution. any advice would be greatly appreciated.