RH6.0 upgrade to RH6.2 problems

[Art Ross <aross skyenet net>]

Hi,
  I finally braved upgrading my RH6.0 Linux box.  It was my home network
gateway to the Web.  I still can make the connection to my ISP and all
the machines see each other on the homenetwork when pinged.  The problem
is none of the machines on the home network cannot get to the Web.  I
tried 'route' and 'netstat -r' and received no information for quite a
long time.  My guess is, I've messed up my routing table somehow.
  Does anyone have any suggestions as to what I'm overlooking in
troubleshooting this problem?
  Best Regards,
  Art