Quote Originally Posted by ink View Post
What is the SQL to add to the config table so I can add it manually?

Sorted, I refresed it one more time and clicked the admin home 3 times and then it loaded the SQL, just some dodgy "plug n pray" crap my end no bug.
Weird, refreshing the admin (or clicking "Admin Home") should have kicked in the plugin's admin initialization script. You'll need to enable OPC via its configuration settings for the 3-page-checkout to revert to a 1-page-checkout.