Last Updated: Nov 27,2010
I found that reading a lot here and just plain trying things out for myself work the best for me.
Everything you could ever want to know about customising your phone can be found in the thread you mentioned. There is no quick and easy guide, there's only trial and error and your own personal taste. Look through a dozen or so pages, find screenshots you like the look of, and look around nearby posts to try to find the names of the widgets etc. If you can't, just click the quote button, and include the image in a post asking what the widgets/background are. Someone will be able to help.
That's the thread where I learned everything I know about custom Homescreens, some very good info there.
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