Archaelolical finds do NOT support a worldwide flood as described in Genesis ...
1. Go google around and find all the "fictional" things in the Bible that there was no archaeological support for...until they found some.
2. Such a flood would be so catastrophic and move stuff around so much that there would be almost no way to find archaeological evidence of it. It wouldn't be like discovering a town hit by a Mississippi flood and picking out whose house was whose. It would be more like trying to give people back the saltine crackers they lost in the flood.
3. Enjoy: http://www.answersingenesis.org/get-answers#/topic/flood