Wi-Fi and Vista Starter Edition

I have Windows Vista Starter Edition and trying to configure a Internet
Connection thrue Wi-Fi USB adapter (with vista driver), the only way that I
can get access to INternet is configure the Wi-Fi as open If I try to
configure the encription with WEP or WAP or someting else, I can not make it.
Using my laptop with Windows XP Pro I can configure the Wi-Fi with WEP or WAP
encryption without problem.
The Question is, Is this an issue with Vista Starter Edition? or a General
issue with Vista? Does any one else had or have this issue?
Thanks and Regards