I think if your site get indexed in yahoo, it probably will be automatically get indexed higher in google. What do you think?
I didn't see yet an script like this but if you want to get your site index faster, just ping it ans submit it to various social bookmarking sites.
Some tips: 1. Optimize your site on SE(friendly url, title, keywords, description), submit to Yahoo Site Explorer with free account, include sitemap. 2.Increase backlinks same as: link exchange, submit to web directory, ask other webmasters to place your links to their site, bookmark.....
Never go with any ready to go indexing script.. they are just scam !!! better concentrate on getting quality backlinks, add fresh content, be active on social networking and bookmarking websites etc..
any script is not usefull for getting index in google or yahoo just get good original articles daily for your website or for blog you will get good ranking ...