It was on cysticlife.org and I think her name was April, if you make an account you can search for April and she is the one wearing all black and I think a hat...
From there you can PM her and she can probably give you her experience.
Also on there if you search the topics for "mycobacterium" or various words related to this stuff, you should be able to find one of her questions and or comments on other questions where she discusses it a little bit.
I am sorry i am not much more help, if you do get a little lost, I can probably find her for you and see if she is on here or something along those lines.
I am sorry to hear you are going through this, I do know that the MAI isn't as common, which you've obviously discovered, but she is one person I know who has/had culture(d) it.
You can also PM me, I want to help you get as much info as you can <img src="i/expressions/face-icon-small-smile.gif" border="0">