Half-Life update help, please reply

Hey, I downloaded this mod the other day and re-installed Half-Life to play it but I've only got the original release version(1.0.0.0.5 or something like that.) I went looking for an update but the only one I find is that monster 86 meg one to the newest version. What's the lowest version I can have and still be able to run this mod and where can I get an update to that version without having to get the huge one.

You need 1.1.1.0 to play it and it is 80 megs. So it looks like you will be downloading it for a long time. Be sides esf is like 90 megs so i dont see what the problem really is.