how to using USB (CY7C68013) with Cyclone III

Older UTMI solutions use more board area because there are more lines. I believe some UTMI based USB 2.0 PHYs are becoming obsolete. It is the older way of doing it. The ULPI based ones use only 12 lines to the FPGA (less lines but at higher speeds). I don't know if the 8051 will help you with data transfer throughput but I know the latest SLS IP Core should be able to achieve 300Mbps with the ULPI type USB2.0 PHYs I mentioned. I was originally considering an FX2 solution as well but I opted to go with a more recent ULPI solution. SMSC3316 may be an option too. I think SLS has a snap on board using the ISP1504.