Decrypted system files for 10.5.6
 

These are meant to speed up your system and eliminate need of decrypter...
They also have the code signatures removed...
Available for Intel and AMD in one package (by selecting during install).
Get them from:
http://www.insanelymac.com/forum/ind...owtopic=158358
NOTE: they are a 5 part sitx bunch... you need StuffIt Expander