Ready to be published? LXer is read by around 350,000 individuals each month, and is an excellent place for you to publish your ideas, thoughts, reviews, complaints, etc. Do you have something to say to the Linux community?
There should be no expectation that a 'yum' upgrade to SL 6.3 will work. A new install is the recommended method to move from 'sl6rolling'(this alpha release) and the released 'SL 6.3'.