Upgrade servicedesk plus 8008 to 8217

Upgrade servicedesk plus 8008 to 8217

Trying to upgrade from build 8008 to 8217 and get the error "The file is not compatible with this product."
 
Is there another service pack between these two versions so I may continue the upgrade path to the newest release? Thank you.
 
 
Harry Seto

                  New to ADSelfService Plus?