I think Yard dog he needs a bit more how to..
Cal... I'm not sure which this "tablet" is? Is it like the ipad or is it the netbook type?
Next question is what is the operating system? Android?
Vista/win7 and Android is easy to connect.
Windows ->Right click the network icon and click connect to network -> Select your network, put your key in and youre done.
Androids just as easy.
Find the settings -> go into Networks -> Wi-Fi settings -> Select your network and add your passkey.
That should get you going..
Unless you don't know your passkey