Question 1 above, haven't read anywhere you can't ... yet.
If you can these prices look better value than the AM2, or are the M/B mega expensive
All prices from scan today 2x 1MB Cache Retail:
Socket F (1207)
FX-74, 3.0GHz Core, £299.95
FX-72, 2.8GHz Core, £239.00
FX-70, 2.6GHz Core, £179.99
AMD AM2
FX 62 , 2.8GHz, £379.89
5200+, 2.6GHz, £219.95
But than again an Intel Core 2 Duo might be better value still.