[Zen Cart] URL's changed - Please help
we recently updated our zen cart database with new model numbers, therefore it changed the destination URL for our products.
so like this:
this keyword: 63840 washer
on google we come up #1, but when you click the link, it goes to the old link and then craps out with a custom error page here: http://midwestapplianceparts.com/index. ... ts_id=2906
googles result link shows like this: midwestapplianceparts.com/washing-machine-39/kenmore-washer-parts-75/...washer.../kenmore-washer-lint-filter-2906.html
this is the new page real result: http://midwestapplianceparts.com/washin ... -3583.html
basically the last 4 numbers of each URL have changed.
so multiple questions:
1. will google eventually find the new URLS? I have resubmitted the sitemap, but it hasn't helped. I am unsure if they will fix it if the page is still found and not a dirty 404 error.
2. I checked with SEO forum and they say to use 301 redirects: http://forums.seochat.com/google-optimi ... post632369
but how am I supposed to know all the links that changed and googles old link and our new link,.... we have over 3000 products
3. we need to fix asap and I don't know what to do, the client is freaking out... any suggestions?