car breakdowns

Hi, I spend a bit of time on forums to try and learmn and improve my SEO techniques. Lots of info there on sites that looking good in the search engines but then the next day disapear altogether. Well I have had one of those days. I find www.breakdown-cover.net has moved up one plane on MSN (no longer bottom of first page. Excellent) at the same time is not now anywhere on Google for best breakdown cover or breakdown cover. What is going on? It can be boreing sitting next to your laptop hours on end trying to show people where to find your site but it certainly hots up when all your good work disapears in one day. Mark