WPA is a combination of two things: network access control via authentication and encryption. WEP is the algorithm, but in the context of WPA, dymanic keys are used and changed long before any know attacks could obtain the key. The authentication type used with WPA can vary. In your case, it's a pre-shared key - a password, if you will.
To successfully connect to a WPA network, you'll need:
A wireless card
A working driver
A supplicant (handles the authentication and key exchanges)
If you can't load the driver for your card without errors, then no, you can't expect to use a WPA network.