block effect on the text is very easy, you do this:
(in Photoshop 6+)
1) Copy the text and the area of the background you want the blocks on
2) Create a new image, paste the area you copied
3) Duplicate layer
4) go to filter->pixelate->mosaic... I think I used 0.1 for mosaic
5) Reduce opacity to 50%
6) go to filter->sharpen->sharpen 3 times
And I'm not really sure which font you mean... tell me which image it's on. But if you mean the font I used for the "9./JG 52" and "I am not a dweeb," it's a font called "Monotype Corsiva." I'm fairly certain that font came with this OS.. don't think I downloaded it.