Help Removing Vodafone 360- and getting new music player

Hello all - forgive me if this is a stupid question, am not v techie.

My DHD is a vodafone branded phone and came with Vodafone 360, a singularly useless set of kit - I can't buy music from the shop if I am on wifi, and every time I sync my music from my laptop it copies some songs several times and others not at all.
It's not v user friendly either.

Can I remove these and install a different/better music player/uploader? I really want to ditch my ipod and have the phone serve both purposes (though I bet it will kill my battery, so what's new)

Any help gratefully received.