keep in mind, if you install the fonts (as previously instructed...) while you have Photoshop open, the newly installed fonts WON'T appear. 

This is because the Font Table is created when you launch PS and is not automaticlly updated.

if you find that fonts stop appearing in your font list while working in PS, you can delete the font table and have PS create a fresh on launch (look around your system for "Adobefnt.lst", and delete all found files, then restart the application.* )

from a major "font-a-holic",
retrocity