why don't the NEC just  instruct him to disclose the figures or another more important question is why is there a need for secrecy in regard to the general Secretaries salary etc. 

The following figures are from the website of association of higher civil servants 

General Service Grades - Pay 2008
(01 Sep 2008)

Revised pay with effect from 1 September 2008 for General Service Grades
 
SECRETARY GENERAL

€221,929

DEPUTY SECRETARY

€177,547

ASSISTANT SECRETARY

€131,748  €137,737  €144,225  €150,712

PRINCIPAL (HIGHER)

€92,730  €96,555  €100,392  €104,217  €107,485  €110,9281  €114,3662

PRINCIPAL

€86,168   €89,819   €93,449   €97,109   €100,191   €103,3891   €106,5822

ASSISTANT PRINCIPAL (HIGHER)

€72,681   €75,448   €78,226   €80,989   €83,760   €85,375   €88,1351   €90,8842

ASSISTANT PRINCIPAL

€66,179  €68,656   €71,132   €73,609 €76,087   €77,520   €80,0161   €82,5202

1 After 3 years satisfactory service at the maximum.
2 After 6 years satisfactory service at the maximum.

Revised pay with effect from 1 September 2008 for established officers appointed on or after 6 April 1995 paying the Class A rate of PRSI contribution and making an employee contribution in respect of personal superannuation benefits.

SECRETARY GENERAL

€233,610

DEPUTY SECRETARY

€186,891

ASSISTANT SECRETARY

€138,683   €144,986   €151,816   €158,644

PRINCIPAL (HIGHER)

€97,617   €101,636   €105,675   €109,705   €113,141   €116,7601   €120,3822

PRINCIPAL

€90,702   €94,550   €98,370   €102,218   €105,463   €108,8291   €112,1912

ASSISTANT PRINCIPAL (HIGHER)

€76,510   €79,421   €82,338   €85,253   €88,169   €89,872   €92,7651   €95,6652

ASSISTANT PRINCIPAL

€69,659   €72,268   €74,871   €77,483   €80,090   €81,593   €84,2251   €86,8652

1 After 3 years satisfactory service at the maximum.
2 After 6 years satisfactory service at the maximum.