[quote]I am trying to decide if it is worthwhile to get my
child support modified. At the time of divorce, I made
more money than the ex but he has surpassed me. Insurance
deductions were taken from the child support. Like I said
in a previous post the support was based on 50/50 joint
custody. Also, the ex does not pay anything towards
extra activities (school fees, braces, school trips,
sports, etc). I just don't want to waste money. Friends
of mine are paying alot more in child support than I
receive and they have less income. I don't want to rock
the boat but I really think the ex owes me money for
my son. Also, in the original divorce decree, college
was never mentioned.

What do you think I should do? [/quote]

College is an extra.
Yes you have people who say that you need a college education to get a good job, but getting that doesn't necessarily equal a good job. Also, until married parents are required to pay for college (which they aren't) I really don't think it's fair or even a good idea to force divorce parents to foot that bill.
Have you checked out FAFSA and/or scholarships as of yet? The parents aren't necessarily the only funding for higher education