Need to register for full text. Blue in Sherpa, Author's Pre-print:   author cannot archive pre-print (ie pre-refereeing) 
Author's Post-print:   author can archive post-print (ie final draft post-refereeing) 
Publisher's Version/PDF:   author cannot archive publisher's version/PDF 
 TPP 1/7/2014. Requested (Max) Accepted v. & permission, 4.7.14-MMM