I read your other post...must say, you've sure got your work cut out for you. :lol: I wish you luck with this one.
I also have an yearling steer that I've been working with. Our weigh in isn't until mid-March, and he doesn't have to be halter broke for the first one. Here's how I've did it - first two weeks I let him run with my nurse cow and calves, who are all really tame and unafraid of me. This steer was really wild, so the look on his face was hilarious when he bolted, looked back, and the cow is standing next to me, totally unconcerned.
I just ignored him for the first two weeks; if he wanted to bolt every time I showed up, fine, but it didn't take too long before he figured out that was a lot of unnecessary effort on his part. After two weeks, he'd become tame enough I could actually touch him, and then I dropped a rope over his neck and snubbed him to a post. I actually like the way it worked out - he was only fighting the rope, rather than fighting the rope and trying to keep away from me. He settled down in a few minutes and stood quietly.
Then I gave him a week of standing tied for a half-hour or less every day, then started leading him. The reason for waiting was that I wanted him to learn to respect the rope - I've been dragged by unpredictable animals and I didn't want him ever thinking he could bolt and get loose. Been there, done that, and it's embarassing!
Right now, I've got him to the point I can lead him around, and he respects my space, and so far everything is looking up. Now I'm headed outside to work with him a little more - good luck with yours. ;-)