I'm not exactly sure on what you mean by it but I'll takea guess.

You said you finished editting, did you do this by putting the site in Maintenance Mode under the dashboard? in that case just turn the Maintenance Mode off.

incase you have the site on a staging enviroment and wish to transfer it to a live server then do it as follows:

- make a database dump.
- transfer all files incl. the db dump to the live server.
- import the db dump on the new server.
- edit the site.php under the map config. change the path to the new path and update the DB data in the site.php.

Thanks that makes sense. But I'm just looking to see where the maintenance mode switch is and can't see it.

Actually, I'm still not getting this. It might have something to do with the fact that I've been working with a developer - he's set up the site and I've been populating it, so I think I have only certain editing permissions and not full site permissions. Anyway if you could shed some light on the issue it would be great.

Dashboard -> Sitewide settings -> Access -> put Maintenance mode to disabled.

If you can't access that then you lack permissions. contact your developper in that case to either grant you the permissions or to have him/her put the site live for you.