Need help (iPhone died)

[ironwaffle]

My iPhone died today and I had to purchase a new one. Despite backing up constantly, iTunes says my backup is "corrupt." As such, I'm having to use a four month old backup.

I had no problem updating to 3.0 so my data is up-to-date on the site. My iPhone backup is the old version of the app, though, and before I either upgrade the version on the new phone or tap in my email address to sync, I want to be sure that I don't over-write the complete data backed up online with my partial data on the phone. Is it safe?

While this isn't top priority, I'm going through my list of data I want to recover. If nothing else, focusing on smaller things like this is helping me not stress about lost photos, messages, etc. Ugh. Okay.