Hey Gary, welcome to the forum and looking forward to seeing some of your work
This forum is wierd as there are times when it's flooded with members posting images and talking back and forth, and then there are times where it will go almost dormant from lack of activity. Havent figured out the pattern yet, but I know what you mean about posting something and not getting anyone to comment on it. I've posted images and weeks later there hasnt been one comment on the post, then in one day 10 comments will be made???
As for CS4, I've just started playing around with it but havent learned it like I know CS3. I dont really like how Adobe changed so many of the locations of the buttons I was so used to. I'd recommend you go out and get yourself a Scott Kelby book on learning the basics. Kelby does an amazing job of teaching things in laymans terms and all his books are very informative and easy to read for almost any skill level.
Sometimes when my wife Cindy is having trouble with learning something on CS3, I'll find the section in Kelby's book and have her read that first. He can do a better job of explaining each and every click of the mouse and what it's accomplishing better than my grunts and short comments about "Why cant you figure this out, I've showed you 3 times already?"
As for selling you images, I'd recommend Smugmug. Great site that has almost unlimited possibilites to host, sell, and tag your photos. Their pro accounts are so worth the money and can get you selling your work in a days time. Their customer service is some of the best I've ever dealt with and if I ask a question online, I usually get a responce within the hour.
If you do get an account with Smugmug, enter cge80uNDMZZ1Y that promo code and you'll save some money.
As to the question on 'What can OP do to help me' that all depends on you. The magazine helps me see what's new and provides for some great inspiration with seeing the images they post. The forum helps me much more and it's free
I like to see everyone elses images as they too give me inspiration and new ideas. Members talk of different areas and the best times to shoot there and I've met some good friends through the forum
My wife and I travel fulltime and along our adventure, we've visited with numerious members of the forum who have been so kind as to offer free places to camp for the night and took us out shooting in their local areas.
All in all, it's a fun place and if you're willing to learn, it's even better