All the se's have more than one center - you never know which one you're reaching. You'll also, as a newer site, see more of that - as the se's look at your site and give it credit - then move it down for some of the more established sites. But the good news is that it means they are finding you and spidering you - and as long as you have the content and keywords used correctly - and you have links with that anchor text pointing back to you - you'll see your position start to move up and stay up.

It will always do some fluctuating tho.

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Beth
A Child's Palace - Pinata Palace - Moxie Enterprises

SEO and Marketing Tools
SEO - The Basics