The poll was conducted by the AP and GfK Roper. It was conducted from 2/12 to 2/17 as the stimulus bill was being approved and signed.
http://tpmdc.talkingpointsmemo.com/2009/02/poll-shows-approval-of-obamadems-performance-on-economy-disapproval-of-gop.php"• 52% of Americans approve of the stimulus bill, with 41% disapproving. And the public is confident by a 54%-45% margin that the plan will result in significant improvement."
"• Congress' approval is at only 31%-59%, but additional questions show a much more complicated picture. The number for Congressional Democrats is at 49%-45%, while Republicans are at 33%-59%. The Republicans appear to be cramping Congress' style."
"• Only 30% say Obama hasn't done enough to cooperate with Republicans in Congress -- the GOP base vote, basically -- while 62% say he's doing the right amount and 6% say it's been too much. Flipping it around, only 27% say Republicans have done enough to cooperate with Obama, with 64% saying not enough and 5% saying too much."
The poll itself is at:
http://www.ap-gfkpoll.com/pdf/AP_GfK_Poll_Feb_09_Topline.pdf