Thanks for posting those links Chad.......
Midge, although they give you 95% of the info you require you may still find that you will need to experiment a bit to get things looking correctly, but once you get going it gets easier and easier.
I did work out how many hexs across that 775 pixels was, it might have been 17 but I am not sure, if you can find that piece of info out you can then create screenshots that will never exceed 775 and hence will not be resized by the forum software, of course if you are not bothered by that then this issue is mute anyway.