I'm still using Owen's Adhesive. His latest version works fine for me, though I do have to say I seem to be the only person posting herein for whom it DOES work. And I haven't done anything funky to the code either - all I've done was install it on 7 blogs, set the css, and it works just fine.
You can get it and try it: http://www.asymptomatic.net/wp-hacks - look for version 2.1 beta which is the one I have had the good luck with. The only thing about it is that you have to "Save" your post before you will see the box to make it sticky - or if you've already published the post, you can just edit it - the sticky designator box to check will appear in the bottom of the edit screen.
You can see it in action (with 1.5.1.3) on one of my theme test-beds here: http://netwizardry.net/thematics/
It shows at the top of the second column - I hadn't had it installed again until the other day, and reinstalled to test that it was still going to work for me. Obviously it does.
[[I should probably note here for those who can't make Adhesive work for them: in general, I'm the only individual in the world who also never has bugs in games. I have no explanation for these things....]]