I am change some of the icons I am using in Word toolbars.  I have
just ported some of these to the new Ribbon UI in Office 2007.
Is there an optimum graphic size to use for these How many pixels wide
and high should I make the graphics?

My ribbon selection disappears when i move to the document area to enter data.
For example, I choose Home then center justify. The cursor moves to the page
and the  and the home choice disappears. I would like the last ribbon choice
to remain visable. Any help? I have Office 2007

I had to replace my hard drive.  I reinstalled Office 2003.  I need to move
scores of Word toolbar customizations from my backup folder.  How do I do
this?  Where do I find the file in my back up to move to my new drive?

For the past couple of days, when I close Word 2003, I get the
following error message:
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Word cannot complete the save due to a file permission error.

In Word 2007, how do I access (navigate to) the Options dialog (as in
Word 2000)?
More specifically, in Word 2007, how do I enable: "Save => always
create backup copy"?