first I suggest you read this
http://www.subsim.com/radioroom/showthread.php?t=149258
then I think using this mod as a pattern can show you a lot of what needs to be done
http://www.subsim.com/radioroom/showthread.php?t=177802
just open the mods files and figure out the things he change to tell you the things you need changed in yours.
this might also be of help with mod tools and technical info
http://www.subsim.com/radioroom/showthread.php?t=155786
if you run into any problems and have questions then just ask one or two of them in the mod forum here
often if you ask too many questions together they don't all get answered so ask a question or two then after those are answered you can ask more questions. that is the best way to get all of your questions answered without have to ask them again.