The Cochran (R-MS) amendment to remove the withdrawal timeline from the Senate supplemental failed 48-50. Democrats against and Republicans for, with the exceptions of Pryor (D-AR) as well as Lieberman voting for, and Smith (R-OR) and Hagel (R-NE) voting against. I don't know yet who the other nonvoter was besides Tim Johnson (D-SD). [Update: from what commenter paj1 says, the other missing Senator may have been Mike Enzi (R-WY).]
[Update, thanks to commenter Terre:] MSNBC has an article up on the vote.
[Update: as noted in Kos's frontpage post and by commenter Magnifico, the roll call is up on the Senate website and shows Enzi as the other absentee.]
[Update: The New York Times and the AP in Yahoo! News have articles up.]
From what Majority Leader Reid said on the floor after the vote, there will be a cloture vote in the not-too-distant future (either later tonight or tomorrow, I forget which). The Republicans have indicated they won't oppose cloture, so the vote on final passage of the Senate supplemental should come within the next few days. Then it's on to the conference committee, but with withdrawal timelines in both the House and Senate versions, it's essentially a certainty that there will be a withdrawal timeline in the conference report.