Its a hard thing to get/find someone to show you unless you invest somehow in there qualifications... or lease the equipment
You have to find someone that isint hung up on what he knows as some gift from God or protective investment...
I see your in perth where there is an Online American course that travels and teaches exactly what you ask even the motec system's! but i can remember it is at the moment.
Also Motec conduct seminars on installation ,tuning and race tuning if you have the coin and you enroll early.
I felt like you SysLink67 where no matter how hard i tried to learn this passivley thought common intrest the harder it became....
Here is not the best place to try and gain info on it, I got nothing but patrinization... BUT!!! i dont give up to easy!
Right now i am learning to use a widband lambda sensor with logging & road tuning simpley so i wont need a dyno in the end
the basic rules to tuning and power are all the same no matter what ECU is used . the main part is understanding the input required and at what intervals and conditions these should be changed in your MAP.
Try a few fuel injection forums where a whole map, rulz and process is gone though and explained> From there dload the softwarez and play with them ... learn about how they are all different but really the same ....>just fancy intergrated PLC's (programable logic controllers) that allow the same AFR or lambda moinitering and adjustment just different userinterfaces.
All the best mate