Where are new programs installed on Touch Pro

[PlanoTreoUser]

I promise I've searched the forum and couldn't find this answer. I'm getting my TP today and have bought an 8gb card. When I install new programs like Sling Media or ewallet, can I install those on the card or do they have to go on the phone's memory? Also, any other advice about installing programs etc would be much appreciated. I'm very excited to start playing with the TP!