Question : Problem: Does cisco support WPA in bridge mode?

Does Cisco 1300 series support WPA in root or non-root mode?  If anyone knows, what is the best configuration to use to use WPA?  Do I need workgroup bridge to access point to configure this or is it possible at all?

Answer : Problem: Does cisco support WPA in bridge mode?

Yes to the first question.
http://www.cisco.com/en/US/docs/wireless/access_point/1300/12.2_15_JA/configuration/guide/o13auth.html#wp1035522

But see the 'Note' at
http://www.cisco.com/en/US/docs/wireless/access_point/1300/12.2_15_JA/configuration/guide/o13auth.html#wpxref69836
if you're using VLANs and a RADIUS server.

I don't know the answers to questions 2 and 3, for sure, though I 'think' the answer to question 3 is No.