Everything you just said has nothing to do with you saying that there were (no) single core AM2s. Whats wrong with you! And this thread is not even about Dual cores anyway! The guys wanting a motherboard not a processor.
First you have to know the cpu type and model to select the correct board. The reference to dual core cpus brings an article called:
Dual-core CPUs to rule by 2007
Most server and desktop CPUs will use dual-core processors by 2007, a Gartner analyst said.
Both Intel and AMD have made dual-core chip announcements this month, said analyst Martin Reynolds in an online brief. And the shift will be significant.
"Dual-core processors will deliver the greatest advance in performance since the introduction of the 386," Reynolds said.
But developers and users must test and tune their software to receive the full benefit of this performance boost."
Reynolds recommended that enterprises get ready to test applications on dual-core systems and replace or recode any that don't deliver performance gains, rather than upgrade them in the next cycle.
He also urged companies to examine vendor licenses for how they now, or will, treat dual-core designs.
"Microsoft is generally liberal with dual-core licenses, while Oracle treats dual-core as two separate processors for licensing purposes. Other vendors will sit between these extremes," he said.
http://www.crn.com.au/story.aspx?CIID=22740