I am very new at this and seems to have a leak in this piece of code that i cannot fix:
The Instruments shows on this line with a 100%:
NSMutableA
This is a dupe of your other question Memory leak problem and i need help #1
When i did release i got into trouble, of course. I did try to change the names on the three and do release so there was unique names but that did not work.
Changing the names across three different files? That won't do anything and it indicates that you haven't entirely wrapped your head around objects, pointers, and memory management.
The Objective-C and Memory Management guides will help.
Could this be the reason for the leak i have in this .m file?
Nope -- as I answered in the other question, the leak is most likely because you retain the object that is returned by that method and then don't release it anywhere.