incrediBILL - 4:18 pm on Jun 14, 2010 (gmt 0)

If you haven't been penalized, meaning your site still shows up in the index, there's no reason for a re-inclusion request because you haven't been removed, just demoted due to SEO changes that backfired.

There's no amount of re-inclusion requests that can fix changes that impacted the site SEO.

It's possible the total site change triggered a temporary change in the index and you could wait it out but I'm thinking that I'd put the old site back up ASAP and see what happens.