IE 6 SP1 — more stable…less buggy?

Is Internet Explorer 6, Service Pack 1, better than when IE 6 first came out?? I installed IE 6 a while ago and had all kinds of problems. So glad I kept the original IE 5 to revert back to.

Now, I still have IE 5.01, and I’m trying to decide if it’s safe to upgrade to 6 since I can no longer get v5.5 .

Thanks.