There are several firms and companies who claim to improve your Google page ranking over night. They claim to have your page on the first page within days and will submit your pages to a thousand search engines.
Well, first things, first.
1) There aren't 1000 search engines.
2) Watch where they put your page -- on search results or on advertisement columns
3) You should show the same skepticism that you show to "burn fat over night" pills.
4) There is no such thing as priority submission on Google. The only way to submit is "SubmitURL" feature.