Questions when getting replacement for the Arrive

[adihere]

Hi guys i recently dropped my Arrive one to many times to the point its acting buggy (speaker issues and random resets after closing the slider), sprint told me that they will have to replace the whole unit rather than fixing it. My questions here are I know i will lose all my previous txts and settings but when i upgraded to Mango via Zune, it saved all my previous txt, home screen tile layouts, accts, setting etc... so:
1) Will i be able to get all those saved setting and such back on from my Zune when i sync or try to upgrade the replacement device?
2) Will Zune just view this as a new device or will it sync my pics and music with the same playlist and all back on as if it the damaged one?

I would atleast try and keep all my previous txt messages, or from the point of when i upgraded to Mango if anything.

Thanks in advance for any help or suggestion you can provide for me guys!