I've been able to successfully download a font (Pinewood), however once using Microsoft
Word I'm not able to adjust the font size. Each time I endeavor to change the size - it just
stays & prints the exact same, original size. I need the font to be very large (one letter per 8.5 x 11 page). Please advise. Thank you.

I've trie to use this font size 700 with Word 2000. It's printed without problem.

Well, it's still not working. Can you advise if there's any way to change a Font size once the font has been downloaded, if it doesn't react to adjusting the size as usual?

A font have not a size. It's the software using the font that define the size of a letter.

If you use Pinewood with Microsoft Word and you don't change the size of the letter as usual, you have a problem with you'r Word.
And I don't know an other way to change the size of the letter than the usual way : Menu "Format" > line "Font" > Case "Size".

For me, it work fine.