First, "you" here is just a bunch of volunteers with varying degrees of knowledge and expertise -- we're not Microsoft.
The "IBA GE SLOT" is the option to boot over the network. This should be last for most people.
You don't really need WD's SmartWare. This is an automated backup solution. Once you have completed the initial backup, SmartWare runs in the background automatically updating your backup as you change files on your main hard drive. It's a nice thing to have, but if it isn't working, you can do backups manually (or in a variety of other ways). The important thing is to actually do the backups however you eventually choose to do them.
I don't know anything about SmartWare so I can't advise you with respect to it other than to suggest that you look in the Event Viewer's (Start > Run > eventvwr > OK) Application Log for any errors that have come from SmartWare. If you find something, that might help you -- or WD support -- figure out what's going on.
I wouldn't worry too much about a 30-second delay between the Windows splash screen and getting to your desktop. Now that you mention it, I sometimes experience a subjectively long delay, but I never associated it with the My Book -- perhaps it is related.