Conversion of RCI points to Starwood system.

I am an RCI points member but my timeshare is Sheraton's Vistana which is a Starwood resort. I would like to get away from RCI and convert to the Starwood system. Does anyone have any info on how to go about this?

There's a Starwood forum at www.tugbbs.com and many knowledgeable Starwood owners post there.