.org and .com of simplemachines. What's the difference?

[humbleworld]

I went to simplemachines.com. It appears that this website has no relationship to .org. Why don't SMF acquire this .com domain?

[H]

Why don't SMF acquire this .com domain?

Probably because the owner still wants it. It is under construction, not for sale . A whois shows that the site is owned by another simple machines company which actual makes simple machines