Ok. So, you don't have so many users on the system that it would be hanging up based on volume. For the Bulk Edit issue, I would check the current version and compare to what is availalbe on www.ciscounitytools.com. Even if the versions match, I would uninstall and then reinstall the latest version and give that a try as a first step.
I asked about the Platform vs. Retail install because I believe the EMS configs rely on some of the IIS settings. If you used the platform discs, you're good to go on that note. For the configs, it may help if you can send some screen shots of your configs. For something like that, it's easier to see what you've got than it is to guess at where something might be wrong.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.