I am still stuck at this point, and frustrated as well. Having said this, I have somewhat started over. That really didn't help any, as I'm still back at the point I was before. (I'm able to ping back and forth, I can reach the internet from the Linux box, but not from the windows box.)
Based on a suggestion from this group, I changed my subnet to 192.168.100.0 Below is a copy of ifconfig, dhcpd.conf:
what happens when you execute
# iptables -t nat -A POSTROUTING -s 192.168.100.0/24 -o eth0 -j MASQUERADE # echo "1" >/proc/sys/net/ipv4/ip_forward
if this work you can put it eg in your
/etc/rc.local
-- shrek-m