The example module and tome are completely separate and in no way effect each other. An addon will make things easier to share and makes testing sometimes smoother. When modifying tome there are 3 real options. 1 is to extract the module, make your changes and then re -compress it to test it. This fast in terms of in game on loading but make it hard make changes. The second option is to extract the module and set it up to load in non .team format. This kills loading times but its easy to make changes. If you want to do this I can provide details. The final option is the addon. this is a easy way to make changes and loads quickly but may require some knowledge of tome. What I personally do is have an extracted copy of tome to use as a reference and then would make changes to the addon. The example addon here gives a decent idea how things work.
https://gitorious.org/te4/tome-example- ... its/master . This should get you started. IF you have further more specific questions just post away or go to the irc channel at irc.rizon.net #tome. I will be there most of the time and other people are also capable to help.
Oh I am glad you enjoyed MoRE. addons made it a bet obsolete but its fun.
oh and a random things with addons check the wiki addon page and that will describe what you do. if you want things to be compatible avoid using overload and stick to hooks and superloading, This is slightly harder to code but is better in the long run