Any techie out there able to explain (to a blonde) how to shrink the size of my pics so I can post them here?
You can use Paint which comes with windows.
Windows 7 - Open picture with paint > click resize > Leave "Percentage" checked and choose the new size > click file - save as > and rename your smaller picture.
Windows Vista, XP etc .... Open picture with paint > click "Image" on the toolbar > click "Stretch and Skew" >Leave "Percentage" checked and choose the new size > click file - save as > and rename your smaller picture.
I dont have a Mac so I cannot help there. You can also use many third party applications to do this.