line 48 is missing a ">" comparison.
change line 48:
$TimeRemaining = ($BurstsRemaining * $BurstTime * 60) + ((($AfterBursts<$EmailsRemaining)?$AfterBursts:$EmailsRemaining)*$RealWait) - (($AfterBursts $EmailsRemaining)?0:($IntoBurst*$RealWait));
$TimeRemaining = ($BurstsRemaining * $BurstTime * 60) + ((($AfterBursts<$EmailsRemaining)?$AfterBursts:$EmailsRemaining)*$RealWait) - (($AfterBursts>$EmailsRemaining)?0:($IntoBurst*$RealWait));
the change is subtle, but in the middle of the expression, this portion of code:
...($AfterBursts $EmailsRemaining)?...
should be:
...($AfterBursts>$EmailsRemaining)?...