How Bush Took Florida: Mining the Overseas Absentee Vote
New York Times probe finds Republican drive in days after presidential election to persuade canvassing boards in George W Bush strongholds to waive Florida's election laws when counting overseas absentee ballots and to disqualify oversees ballots in counties won by Vice Pres Al Gore played key role in election outcome; notes Florida officials, under intense Republican pressure, accepted hundreds of ballots that did not comply with state law; analysis of 2,490 ballots counted as legal votes after Election Day finds 680 questionable votes, with 80 percent of them accepted in counties Bush carried; Bush won state by 537 votes; probe finds overseas ballots were judged by markedly different standards, depending on where they were counted; some voters admit casting illegal ballots after Election Day, interviews; probe finds no evidence either party organized effort to solicit late votes; table; photos; time line (L)