That's correct, you can't update it anymore through official channels.
You can, however, continue to use it. You can even reinstall it. You will need a hack to re-update afterwards though.
There are ways of keeping it up-to-date as well, which I will not mention here. They are non-compliant with any number of TOSes, not the least of which is the one you agreed to when you installed it in the first place.
Further, they require an intermediate amount of computer knowledge in order to work. You don't need to be a hacker, but it helps if you know your way around XML.
If you are interested in this topic further, I would suggest you pursue it elsewhere. Try searching for an Axe that does d100 damage.