Ok everybody -- here is the easiest way I know to resize a picture for posting.
First -- go to Google and enter PIXresizer. It will take you to the results page and then download the program PIXresizer. Once installed on your computer, you can just bring any photo (regardless of size ) to the program by simply following the commands. You then can select the size that will correspond to the parameters that are allowed to post the picture. You save it with a name in any program you desire. I use My Photos in Microsoft. Now when you go to post the picture you select the image you have resized. just remember that you cannot have spaces in the file name and give it a jpg name.
Once you use this program you will never go back to any other method. I also use this program to insert photos in e-mail.
Good luck........
