well as the title suggest I'm new to Guild war and pretty much Online Game Multiplayer

I would have gone for WOW but the monthly fee isn't something I can afford , beside addict as I'm to games lol the bill will be hot hot in the end of the month
Anyway , so I just got Guild War (the original no Exp) , and it's already a problem (Sigh) .
See it's a DVD and I don't have a DVD . So now what ?? I have played the trial and done with all the Free hours play . But I do have the access key that came with the game . So do I get a DVD player ? or can I use the key with the demo installed ?? And would that unlock the FUll game ?
Please help ,
Thanx In Advance !