the original online sandbox 2 manual went offline years ago as you all probably know. Here is the old url:
I had downloaded the complete manual back then and have now started to put it online on one html page as a side project of my reloaded project. It is still work in progress and I am hoping to extend and clean it up so that it becomes a solid reference for anyone still working with cryengine 2.
the manual is here (still rewriting and uploading - polishing will come later, this working copy is in xhtml) Reloaded-game.neptunian.org
I also put up a wiki