For some reason I had trouble posting with pics. All files were less than 1000 KB?
The limit is 1,000 kb total for all the picture files in each post, not each picture you post.
IrfanView does a nice job of resizing and compressing pictures, and it's FREEware. It's also easy to figure out. If I could figure it out, most anybody can. I had Olympus and Canon software and couldn't figure it out...but can process a jpeg with IrfanView in under 15 seconds...and get them down to under 100kb, often first try. As far as I know, you want to use jpeg type files, as they're the most compact...least kb. I have noticed that I can get a jpeg right on 50kb and not be able to post it on SSW...I think because the name of the picture adds a kb or two. I try to make my picture titles contain the information I have on it, so they may get a bit long.
I suggest resizing to 500 to 800 pixels wide, save and then compress at about 80% or a bit less. Later, you can skip the intermediate "saves", after you've gained some confidence and experience. When I first go through my pictures after transferring them from the camera, I give it a title with all the info I have. At each step in the rework, I just add %, %%, %%%, etc., to give me a clue as to which version is which. When I'm done, I delete all except the last version and then remove the %'s from it. They are transferred from camera into a desktop folder called "Test Pictures". You can call it what you want, of course, but avoid getting it confused with folder names in "My Documents", which is where I store my pictures...in a folder called "Model Pics and Plans" or maybe in an alternate folder, "Model Information", which is more for text, but also includes "how to" articles. Just FYI.
When taking digital pictures, it's really critical to be aware of the background. You don't want to post a picture of a model plane sitting on grass or rough textured surface, because that sort of background takes a lot of kilobytes. We're interested in a crisp picture of that fine model airplane, not your lawn!
Steve