lucho115
If i can help in something to acelerate the migration to centos 6, just say it.
You can subscribe to the devinfo mail list (link at top of forums) and offer your services there. The developers and anyone seriously interested in sme server are subscribers.
You can also look at the bug reports and help fix outstanding issues. If your interest is LDAP then look at what is required to get that fully functional for a proposed sme 8.1 release.
LDAP is experimental in sme8.0.
You can raise a bug as a New Feature request for a CentOS 6.x based sme server and see what the response is. Maybe it would really be a Future category bug request. I'm sure there would be a lot of effort required, and having just released sme8.0, the primary focus of the active developers may not be on porting sme to CentOS 6.x just yet. It has to start somewhere and at some point in time so the more hands that are available, the more likely it is to happen.
Just let the developers know of your interest & skills and for sure you will get feedback.
Perhaps for now you should just look at upgrading sme8.0 with the required packages (php, mysql etc) to the versions that are in CentOS 6.x to satisfy your current needs and/or dependency issues.