Question : expanding internet wirelessly using access point and yagi antenna's ... I give up !

Hi;
I've spend way to much money trying to figure this out.  I have a netgear N router (MIMO) and I have a warehouse about 500 ft down the street with clear line of sight.  With my laptop computer and a simply wireless B card I can go to  the furtherest extent of my warehouse outside and surf the web.  It seemed logical to me that I'd be able to grab this signal and funnel it in through a access point and then redistrubate it out into a router where I can run either wire or take the signal wirelessly.  So, I purchased a linksys wireless access point (WAP54G) and configured it as a repeater with the same SSID as my netgear router and the same MAC address for purposes of simplicity I didn't use any WEP or other security it basically an open connection.  I also purchased a Cushcraft high gain yagi antenna and mounted it in a clear line of site with my house.  There are only 2 buildings on this street and I own both of them.  Remember I can stand out the building outside with nothing but my network card in my laptop and surf the net allthought it a weaker signal.  So, I hook everything up and spend hours trying to figure out what I've done wrong.  I joing expert exchange and spend hours sorting through other problems and solutions and thought I had it figured out.  But no luck.  I can get the access point to show up but no internet signal.  I'm ready to scrap the wireless idea and just trying running about 500-600 feet of cat 6 wire.   What do you think have any suggestions.

Answer : expanding internet wirelessly using access point and yagi antenna's ... I give up !

You are mixing 2 different brands of wireless aps.  This is generally unsupported.  If you want try the same thing but with but with same brands  ie ( linksys and linksys)
By spec 328 feet or 100 meters is the longest stretch you should use cat 5 5e or 6.
One thing though, you could run cat 6 from neatgear router to the linksys ap.  Then use the high gain antennae to shoot to your house.