we've updated 1solution VM1.1.x plugin for Certitrade card processor plugin which does not require any sort of core virtuemart modifications and fixes any bugs found in the original 1solution plugin. This plugin works well with and without One Page Checkout for Virtuemart.
How to install:
1. Unpack to your Joomla root
2. Create a plugin with VM1.1.x associated with "ps_certitrade" class
3. Click save
4. Make sure that payment's extra info loaded properly
5. Test with developer credentials (included)
credit card num: 1234567890123
year: 12 (you'll need to check certitrade new test credit card number after 2012)
If you need support, please purchase additional services in amout at least 50 euro here.
Stan Scholtz and RuposTel.com Team