Hi,
Any links with useful information about How To Upgrade - Migrate from MSDCRM 4.0 On Premise to MSDCRM 5.0 Online?
Please find the useful links.
http://social.microsoft.com/Forums/en/crm/thread/6a17f930-9d7a-499e-a193-3950d65c891d
http://www.powerobjects.com/blog/2011/03/21/powermove-moving-crm-4-0-on-premise-to-crm-2011-online/
http://community.dynamics.com/product/crm/f/117/p/54434/98149.aspx