Tim,
Your screen res
will affect the screenshot size.
After point
5. click on 'Image' then 'Attributes' then check your screenie is less than 640 pixels wide & 480 high and 'size on disk' is under 100,000 bytes.
If it's bigger than this, then go 'edit', 'undo', & reduce it again to 70% or 65% instead until it's small enough!
