Network Browsing

I have 2 servers one serverthe name is mailserver is used as mailserver,Internet connection sharing as well as the downlink from the sattlite. i have a a sattlite dowlink card on the the mailserver and 2 other netwrk cards which one netwrk card is used for the modem to the internet that card is assighned an public ip and the other card is assighned a prvate ip on which ics is enabled.i have 2 types of clients windoes xp and win98 and other serveer is runing oin windows 2000 active derictoy which all the 6 windoes xp clients are athenthicated by the other server the prblem is that i use tcpip as the main protocol and the ip is dhcp enables on on all the pcs it gets the ip from the mailserver. but the problem is that i cant se any comuter inthe netwrk neighbourhood until i go to find computer then only i can get the computer which i want. and as i tryed enabling wins it picks up the ip of the sattllite card which is givend by the sattlite service providor . and the windoes xp clients find it very slow to browse through the network it takes roughly 5 mints to go to a computer . too many broadcast storms are created. Kindly assit me in solving this problem