Najmeh,
You can actually use LabVIEW and NI-VISA to communicate with your Agilent board. From the Agilent webpage for the board you are using:
http://we.home.agilent.com/cgi-bin/bvpub/agilent/Product/cp_Product.jsp?OID=536880377&NAV_ID=-12363.536880377.00&LANGUAGE_CODE=eng&COUNTRY_CODE=ZZ&JPID=/find/82341c
Go to the Library Key Information >>Faqs and click to on "How do I configure Agilent I/O cards and converters to work with the National Instruments software?" This will direct you to a readme file that contains the information you want.(I'm doing Agilent tech job...):
ftp://ftp.agilent.com/pub/mpusup/pc/binfiles/iop/m0101/readme/trouble/niinfo.htm#Agilent_HW_with_NI_SW
For info, our website contains also relevant information:
http://digital.ni.com/pub
lic.nsf/websearch/E56D3D4866BE0A8A86256942006626F0?OpenDocument
Regards,
Cyril Bouton
Applications Engineer
National Instruments
Cyril Bouton
Active LabVIEW Developper