migrate from local to live site using Snapshot

I've installed WP locally using InstantWP and starting building a site. Now I want to transfer my work to a live site on the net.

With Snapshot, on the local site I successfully make a snapshot including everything. On the live site on net, I do a fresh install of WP, install Snapshot. Copy the snapshot I made via ftp into the shapshot directory, in settings have Snapshot scan and successfully import the snapshot, but then when I re-launch the site with its real URL, eg. http://www.mywebsite.com/wp-admin it reverts to a local address, something like 127.0.0.1. It's lets me log in, but the URL is the local one. Am I only a few tweaks from success?