http://search.msn.com/results.aspx?q=myspace+layouts&FORM=MSNH&srch_type=0 All the other sites were updated at like 15th jan and my site (xenra.com) was last updated on 8th?
How often does your content change? Not having the cache updated for a while is not a major thing. Try to keep content fresh to give search engines more reason to visit more frequently.