I feel for ya. You might want to try the CODE400-L mail list at Midrange.com. There are some IBM'ers participating there and they have been extremely helpful. IBM does have a set of newsgroups for these products as well, but strangely their participation is not as comprehensive.
My only contribution to your trials would be to suggest that you take all defaults as it suggests them to you, it seems as if the group that wrote these packages aren't familiar with all of the different ways that people set up their PC's, so they make some bad assumptions about how the software will be setup and used.
Bill
I've had nothing but problems. I've tried installing from CD and the IFS. First the thing wouldn't install VAJAVA. Then the help didn't configure properly. Now after wiping it off of the system over 100 times (no exageration), it won't install CODE Editor or Designer although it said that it did. This is extremely frustrating. We're putting Domino up next week. I hope this is not an indication of things to come.