I have a light that I want to order new optics for. Any one know how to find manufacturer information or spec sheets?
You want to look for a lenses for the  Cree Xlamp XPE on that board.

LEDiL is probably your best bet.  They have 266 for the XPE here: LedIL Product Search

There are many stick-on tape or glue down lenses that will work on that board. 

You can go to any major electronics distributor and they will have LEDiL and many others.   The category is usually optics=>Lenses e.g. Digikey,  Optoelectronics > Optics - Lenses

As far as replacing the LED itself, there are thousands of possibilities. Cree's new XP-3G would be a good choice.  It has 81% Wall Watt efficiency and has the same PCB footprint. Or an OSRAM Olsen SSL has a smaller footprint but will often fit in an Xlamp footprint.  The Olsen SSL come with 80°, 120°, or 150° optics and are inexpensive.