downloaded client

i just downloaded the client for guild wars and although my vid card is unsupported it runs fine. does this mean that the actual game will work when it comes?

It should, yes. You'll have to wait to see how characters look, though.

what card is it ?

its a geforce2 gts with 64mb

edit: also will i need to uninstall the client before the game arrives or will it just sort of overwrite it

please refer to the minimum requirements:
http://www.guildwarsguru.com/forum/s...ead.php?t=4262
you should get the recommended graphics card or better if you wish to play the game enjoyably.
the client is the same as the release. you should install from the cd anyway since there are resources there that you would have to wait to download otherwise.