Hello!
What version of e-smith do you use?
I have hosted a halflife counter-strike server on both 4.0 and 4.1.1 without any problems. There is a module called ip_masq_quake with the e-smith and as far as I know it works for halflife too. I didn't have to do anything to get it work... Just install the halflife server files on the e-smith and then there should be no trouble in starting a dedicated halflife server...
I run a Counter-Strike dedicated server on my e-smith almost 24/7 and it works perfectly. It is also easy to install programs (I prefer halfStats,
www.halfstats.com) that makes nice stats from your halflife server and show them on the webserver that comes with e-smith...
CS server ip 213.66.186.160
Stats 213.66.186.160/stats
In short e-smith works great as a game server

Boban vi kan ta det på svenska också om du vill

Har du problem så kan du bara maila mig så ska jag försöka hjälpa dig så gott jag kan...