Importing data w/ Unix timestamp

I want to copy in some data from a tab-delimited flat file, but one of the
columns that should translate into a datetime is in Unix timestamp format
(seconds since epoch).

The data should go into this table:
create table logins (
    uname varchar(100),
    timein datetime,
    duration int,
    cid varchar(20),
    natip varchar(20)
);

But it looks like this in the comma-delimited flatfile:

bob     957974401    17    8325824    210.16.68.250
james     957974401    13    3737270    210.16.68.250
edwin    957974402    201    3672136    210.16.68.250
steph    957974404    25    9398998    210.16.68.250
mitch    957974406    7    7221757    210.16.68.250

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Brian Baquiran <brianb@edsamail.com>
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