If Obama or the DNC have accepted money from PACs or lobbyists, it was either a) prior to five months ago, when he made that promise or b) subject to some really weird loophole. Obama can't take money from PACs or lobbyists because he made a legally binding promise not to.
I'll ask about this at work, but I'm pretty sure that the no-PACs-or-lobbyists thing has been upheld.
Now, understand that
And while the money totals pale in comparison to the $9-million-plus that just one union's PACs have spent to get Obama elected
means that PACs can still spend money on campaigns for Obama, they just can't give to him or to the Democrats. They have to run their own campaigns.
McCain and the Republican National Committee, on the other hand, take a ton of money from lobbyists. At one point in recent weeks the RNC had 85 million dollars and the DNC had 3, and the discrepancy could be attributed to corporate donations to the RNC. (My source here is my employers, a grassroots campaign operation.)