Android for HTC Viva

[spraj]

Hi there everybody. I am very new at this. I've been looking at the new android phones and I was just wondering....... I have a HTC Viva running on Windows Mobile 6.0. It always hangs. Is there some way I can change the OS to Android? Just trying to give the phone a new lease of life its about 2 years old and I like the phone very much.
Like how Android works and it has a lots of downloads


Can somebody help?

Regards

Raj