Hi,
You were correct - the regex isn't matching. Here's a fixed-up and /x modified version:

#!/usr/bin/perl -w 
use strict;
my $row = "Updated: Mar-11 23:05:50 PST";

if($row =~ /Updated\s*:              #The String "Updated", followed b
+y zero or more spaces, then a colon
           \s*\w+\s*-\s*\d{1,2}\s*   #This matches " Mar-11 "
           \d{1,2}:\d{1,2}:\d{1,2}   #The time
           \s*PST/x) {               #The timezone - do you really nee
+d to be this specific?
        print "Match\n";
} else {
        print "No Match\n";
}
[download]

On the other hand: should you really be using a regex for this at all?
If it's a date, then Date::Calc could do very well for you (check out parse_date).
I'd also recommend thinking about whether you really need to have " PST" in your regex at all - do all the "Updated" strings contain that timezone information?
hope this helps
davis
Is this going out live?
No, Homer, very few cartoons are broadcast live - it's a terrible strain on the animator's wrist
Update: On re-reading your code, it appears that you're using parentheses to try and capture the whole string - these need to go inside the regex delimeters.
And I won't even mention that you should be "use"ing "strict" and "warnings" ;-)