Uploading Pics -
How you post a picture is a little different depending on the source of the picture. The size is dependent on a couple of things. The pic won't come out any larger than the original was so if you use a small pic you will get a small pic.
There is a way to preview the post to see what it will look like also which can be very handy when you are trying something new. If you are starting a thread, the post will already be in "Advanced" mode. If you are replying to a thread, at the bottom of the reply block is a button "Go Advanced." Once you get into the Advanced mode, there is a "Preview Post" button that will show you exactly how your post will look but doesn't post it. That way if you need to make some adjustments you can.
Pic method #1 - is to upload pics from your computer as attachments. You use the paperclip button next to the smiley face in the editor panel (right above your post) to browse and then upload pics. It is pretty self-guiding BUT it will always post thumbnail pics that people have to click on to see the big pic. It is the fastest way to get pics in a post but doesn't post them full size within the body of the post.
Pic method #2 - if you have a pic on your computer you want to use (or method #3 doesn't work), upload it into a photo management program such as
www.photobuckets.com (there are others, I just use that one), I think tinyurls.com is one also. You have to open an account with them but it is free up to a pretty large number of pictures. Then there is "Get links" button on the pic once you've uploaded it into photobucket. You want the one that says "IMG codes" click it (which copies it) and then just paste that straight into your post. NOTE: If the picture on the photo sharing site is removed, it will remove the picture from your post also.
Pic method #3 - if you find a pic on the computer that you want to use in a post, right click the pic, copy image location (which will copy the url for the pic), then go to the post you are making, and select the picture/postcard/little yellow square with the mountain on it from the editor panel above your post. Paste the url into the block that comes up and it will post the pic.
I really recommend using the "Preview Post" button until you get the hang of it. Sometimes I've had some that look like they will post right by pasting it straight into the post but they don't. If it doesn't do that way, then use the little picture button and try it that way.
There's also a way to set up a photo album in your user profile that you can put pics in and use them easily in the forum but you have to have a VIP membership for that.