I have it working too. I installed java, and then mini direct from opera's website. You can also try the GC Java Pack thing over on XDA (it installs java AND opera mini for you, and if you want too, the gmail java app). The lettering in both are super super small, but at least in opera mini you can change the settings in it, and set the icons to extra large, and then they're ALMOST readable.
http://forum.xda-developers.com/showthread.php?t=399897 - give that a shot and see if it works.