Look at
http://zodttd.com/forum/index.php?topic=493.0
http://zodttd.com/forum/index.php?topic=494.0
http://zodttd.com/forum/index.php?topic=496.0
for some good guides. I would put them on here, but over there you can attach files to post and here you cant
http://zodttd.com/forum/index.php?topic=493.0
http://zodttd.com/forum/index.php?topic=494.0
http://zodttd.com/forum/index.php?topic=496.0
for some good guides. I would put them on here, but over there you can attach files to post and here you cant