Bulldozers first screens

[informal]

The two (2) 128-bit FMACs per Module will only be paired to one 256-bit FMAC when we will have AVX.

If we only have one FP instruction per Module, then one 128-bit FMAC can have all the resources (FP Sheduller etc).

You are wrong.
Look here:
http://blogs.amd.com/work/2010/10/25/the-new-flex-fp/
If we have single threaded fp legacy code,one integer core can schedule instructions on both FMACs.

Core 1
2x128b AVX or 2x128b un-recompiled SSE

This means one core can have the whole shared FP resources on its disposal if Core 2 has no fp instructions scheduled in FP scheduler.