Because someone put it there.The info is posted on this very forum.ME7 is about 1000 times more complicated than this old ECU.
Basically my message is - do not blame your ineptitude on the ECU.
I've tuned these old ECU's to 400hp multiple times, and the only thing that makes it somewhat difficult is lack of good datalogging.
But the ECU is so simple you don't need to load much besides load and knock retard. Everything else you can get from external sources.
I think like you, PRJ. Taking in account DaniBanani, that you could be talking about a 1.8T AEB with M382 ECU using stock hardware (turbo, injectors, FPR, MAF, etc...) maybe your cheapest alternative could be migrate to a flashable M383 or M592 ECU. Also you will need a wideband gauge or controller with datalogging capabilities and with some patience you can do wonders. All the info you need is here in the forums.