is there a way to save server/world on more than one profile? it's pretty depressing that me and my brother can't just login and play whenever. We have a memory card, but is there anyway to put the server on more than one profile?

no

have still yet to play with u

All you have to do is get a usb and copy the world from your profile to ur usb, then copy it to your brothers profile in minecraft and it will play. Simple and done.