Ok, Ive heard alot about this issue in the cooresponding thread involving ATP 3, this part is far more simple. To get ATP 1 and NanoFX 2.0 Beta to run cooperativly do the following. *If this doesnt work let post similar suggestions here, im writing this from memory*
1. BC 1.1 Install (duh)
2. First you need NanoFX and ATP 3 running together. There are several ways to do this, all posted in the sticky thread about it, do whichever works for you.
3. Run the ATP 1 file in BCMI.
4. IMPORTANT: When installing, DO NOT click Yes to All when overwriting. The only file you need to overwrite is Quickbattle.py. This is only required to run ATP1, not ATP3. Do not replaces any of the other files, as the ones from ATP3 that you would be replacing are newer.
5. Run STBC and make sure the NanoFX, and ATP's 1 and 3 are on.
That should do it :D
This may be silly, but if you have ATP3 working with NFX2, why would you want to downgrade to ATP1?