I just ordered a HP HX2415. I am new to the world of PDA's, but I decided to try. The PDA I ordered has Windows Mobile 2003 SE. What if I would like to get Windows Mobile 5.0 put on it? I know it supports it (HP's website asks if you have 2003 SE or 5.0 on it.)

How would I go about putting 5.0 on it? Where would i get 5.0? I imagined it like buying a Windows 7 DVD. You just buy it and install it. But as I find, you don't buy Windows Mobile 5. Can someone explain this system to a newbie? Thanks.