But Bill, as an engineer don't you always deal with technology changes as electronics, microwave technology etc progresses and becomes better and more efficient? For example, if your company stuck with 1990's technology, you wouldn't be able to complete with other vendors and you'd be out of business (the same goes for John's forum). Technology is constantly evolving, changing and moving forward to become better and more efficient.
I do hear ya about the change from Office 2003 to 2007 - they were rather dramatic, but in the big scheme of things the software now has a better, more efficient layout and a lot more editing features then before - the problem really was waiting 4 years to do an update - heh just wait til you see Office 2010. This doesn't apply here with the forum, but for software like MS Office, instead of trying to learn it thru trial and error - I highly recommend purchasing a book that will help you learn all the new features etc, it would be a worthy investment and save you tons of time.
I hope nobody leaves, this new layout will work out soon, it just take a small amount of time to iron things out and get used to it. Heck I don't know where everything's at yet either but I'm finding my way around slowly...... hmmm, maybe I should write a manual for the new site? 
Yes, but, I hate it when Agilent makes radical changes to their circuit simulation software so I have to re-learn it. I don't mind additions, but when you make what I used to do be so different than what I have to do now, it really irritates me.
Cars are different today than they were yesterday, but my tools in my garage still work just fine on the new cars, I don't have to learn how to use a a whole new set of different tools.
And as far doing circuit design, it's not like when new technology comes out, I have to re-learn how to design things I've designed before, I only have to learn how to use the new component, none of the other components have changed. It might be a new FET with a different bias point, but it is still a FET. It might be made with different materials IndiumPhosphide vs. GalliumArsenide, but it is still a MESFET (and yes, I said MESFET which is different than a MOSFET)