Cannot connect to Cisco WebEx meeting with Safari 5.1.9 / 10.6.8

Question

I'm trying to join an Internet meeting which is running through the Cisco WebEx system. When I click on the meeting url, it takes me to a login page; I enter my name & email, click the Join button, and go to a page that says "One Moment Please…" And stops; it goes no further.
If I drag the url to Chrome, it goes through the same routine to "One Moment Please…" then after one moment the "Cisco WebEx Meeting Center" software (previously downloaded and installed) opens, and I'm in the meeting okay.
Same positive result with Firefox.
But Safari won't do it. I discovered that Java (which is used by the Cisco software) was turned off in Safari, so turned it on; no help. I reinstalled Safari (5.1.9), Java (update 15), and the latest Security update. No help. Chrome and Firefox still work, but not Safari.
Of course I could use Chrome or Firefox, but after being an Apple loyalist for 25 years, my first choice of course is Safari… though I'm beginning to wonder why, with all the constant "Web pages must be force reloaded" and spinning beachballs it's been giving me.
I was on the phone for an hour with a knowledgeable and helpful Cisco rep, who in the end was as stumped as I was. Everything works, but Safari.
(Btw, I found a Discussion from 2009 which suggests "WebEx uses VERY OLD APIs and will not run in 64-bit Safari. For now, use Safari in 32-bit mode or just use Firefox to launch WebEx." Tried that, didn't help. Presumably WebEx has be updated in the last four years.)
Anyone have any ideas?

Answer 1

I'd use that terminal command - takes seconds (and a restart) + no download. But otherwise yes - the 10.6.8 v1.1 then the update & anything else software update picks up (not safari, obviously )
Some people happily get a copy of just the safari 5.0.5 application & use that, since apparently it works, although I'm not sure what cookie function you'll get (easy enough to see). You'd use Pacifist to extract it from the 5.0.5 installer package, or grab it from a backup.
Although you'd hope software update would catch the security change - I'm not sure if the combo would overwrite the new or not... on the one hand, it's newer, but on the other, it sure over-wrote safari 5.1 when i checked it... so better to be sure, I haven't checked since that update.
If you look at the files in /System/Library/Keychains/ afterwards - if EVRoots.plist, SystemRootCertificates.keychain, and SystemTrustSettings.plist are all dated 23 April 2011, the combo rolled them back - if they're later... it didn't.
Apple do know, since bug reports come back as 'duplicate of...' - but  there's no public info to my knowledge.
How much of a security issue is this? Should I worry about it, or just leave it until they update to fix?
more privacy than real security, I'd say - although there are add-ons to manage cookies.