I'd be happy to look after the repository if someone could tell me who I need to talk to, and/or what I need to do.
I just don't know. Maybe you could try contacting the OCT?
I changed HEAD to 5.8 so the 5.7 packages should be built.
Its not clear if optional packages are included for 5.7 that depends on if they were tagged for release with 5.7 compatibility.
Unfortunately the 5.6 branch repository is still missing. I believe there was some issue with the CVS tags sometime, but I thought it had been fixed previously. I'll try to figure it out.
As well, the new 5.8 repository has development packages, not the 5.7 ones...
I'd be happy to look at the repository generator code if it's available