This is a plugin for enrolment using the 2checkout.com web site for payment.
It has been tested on Moodle 1.8.3 + and 1.9 +. It likely works on other versions.
UPDATE 7th July 2008: Bug fix for printing (manual) enrolment key if manual enrolment is also allowed (files enrol.php & README.txt changed). It should work with prevous releases of Moodle but has been tested with 1.9.1 +
UPDATE 10th July 2008: This is now in CVS and is built nightly.
See instructions in README.txt