@chilady1 - Could be that the update hasn't propagated thru the app store - here in Malta "Marvin" is not turning up either. Give it another couple of hours (it will still remain free by then).
You can get the direct links from
marvinapp.com
@institute - If you bought the theme pack on iPhone you just have to tap "restore purchases". i.e. purchases in the iPhone version are valid in the Universal version.
JBaby - Unfortunately, Apple do not allow sharing in-app purchases between apps. I really wish I could do something about it but I really can’t. The Universal version is the same “product” as the iPhone version so if you have themes there, they will work.