I managed to get an update, I had to download the new sierra update utility from their website. Admittedly, the HL update took some downloading as was 82mb in size, so unless you have adsl, it will take quite a long time to download. Have you checked you firewalls to see if they are blocking any requests from the HL servers?
It's a good idea, but when I play HL, the only thing I have running is Explorer, rnaap, Ptsnoop and systray. I am able to dwnld maps from various servers if I dont have them.
This is because I use DUN connection on a 56K V90 internal modem. HL Updater from Sierra Utilities in start menu, does not like my connection with Onetel.net, my ISP, so I have to update by dwnldng patches from HL dedicated sites.
I guess I'll have to keep checkin these sites, unless anyone else comes up with anything.
I bought half life about two weeks ago and had to update through sierra updater this is a BIG file and on 156k took a good couple of hours dont know why you cant get through though, you could try gamespy for the update not 100% sure if its on there though, this site has plenty of game servers too, try searching for it on google, . I recommend the Day Of Defeat Mod for HL too ,excellent! Maybe Ill see you on there soon!!!