Please make sure which driver you were using in Xp and which one do you use in Win 7. The latest Cypress driver for FX2LP is CyUSB3. You can download the same from Website (FX2LP DVK or FX3 SDK).
I am attaching a link which will tell you how to migrate to CyUSB3 from CyUSB. http://www.cypress.com/knowledge-base-article/migration-ez-usb-fx2lp-driver-cyusbsys-cyusb3sys-kba92893
The link is showing an 404 error.
what driver you think I should download for CY7c60813A-56LFXI?
You need to install CyUSB3 driver.Download the kit package from the below link and install. This will also install the CyUSB3 drivers.