Dial-up Sux0rs

This sux! My DSL modem is broke and I'm stuck on dial-up at home until they send me a new modem.

Don't know what you got till it's gone
Don't know what it is I did so wrong
Now I know what I got
It's just this song
And it ain't easy to get back
Takes so long

If anyone can tell me exactly what "sux0rs" means, I'd appreciate it.