Deni:
Sounds like you had quite an ordeal with the installation - glad you were able to figure out what was wrong - how can you tell which side is up?
Now that it is installed does it really make quite a difference in manual focusing - do you still get the green focus indicator in the view finder still - does it agree with the split screen focusing grid? Have you had to give the exposure a bump of +.5?
Does the screen look the same as the instructional link that I posted earlier?
For a split screen focusing grid with marks etc see the Katz eye site - they appear to be more 'sophisticated' and over 3 times the price...
Katz Eye™ Optics - Custom Focusing Screens
Deni I anxiously await my delivery from China...