After a bit of testing, it’s not the lines in the config file as I have taken these out and cleared all caches.
After reading this post http://wordpress.org/support/topic/why-do-all-my-dynamic-links-begin-with-https
I have gone to settings in my Network and could see it was adding the https prefix (with all the wp-config SSL settings off). I Logged out and in again turned the wordpress https plugin (that was already off) on and then off again and this has for some reason cleared the https prefix. However the forum links are still https and I’m not sure where it’s pulling this from. I have removed the login form as guided above and not sure what else to do.
If you want to see the links in the forum, the testing site is here:
http://lrsdev2.candsprint.com/forum/
Any ideas where else I can look?
Thanks