Integrate 2checkout in PhpLinkBid script

Hi! I want to be able to use 2checkout instead of paypal in phplinkbid script (phplinkbid dot com). Script currently support paypal, this feature do not have to be removed from script, but have to be turned off... Version I run is 1.4.2 on jettlink dot com I will provide script, can be installed on my domain for testing purposes, you integrate 2co and send only files that need to be changed! Payment release after successful testing. Thanks for your time. Regards