One of the basic skills that is required in any language is counting. You need it for telling time, buying things, directions, and more. There are several podcasts on ISpeakHindi.com to help you, but there are also other resources on the Internet that will be useful as well.
Word Lists from WordChamp: http://www.wordchamp.com/lingua2/Search.do?str=hindi%20number
YouTube video that teaches counting in Hindi: http://www.youtube.com/watch?v=nPIonND5Mrw
Flashcard Exchange list: http://www.flashcardexchange.com/flashcards/view/204215
If you are not already a paid subscriber, you should consider becoming one. It is only $12 every 3 months. That's only $4/month. Learning Hindi is worth much more than $4/month, so this is a great deal.