Hay, I run a price comparison site just for electrical goods, i submited my sitemap to google webmaster tools and within a week or so i was getting 1 - 2k hits aday and a few sales, after playing around with the price comparison script i broke part of it witch gave 404 error in google webmaster tools, i know have a a massive traffic lost maye 10 - 20 hits a day. I have fixed the errors any idea how long it could take for me to get the ranking back or could it be nothing to do with the 404 errors? Here is an image of my webmaster tools as is now: View attachment 100482