If you run into problems while setting up your relay, please refer to the FAQs page in the Support Portal.
You can also ask your questions on the public tor-relays mailing list and the Relay Operator sub-category on the Tor Forum.
The list is a great resource for asking (and answering) questions, and for getting to know other relay operators. Make sure to check out the archives!
You can also get help by joining the IRC channel #tor-relays in the network irc.oftc.net.