IDV data catalog HYCOM

[Mona]

Dear all,

I was doing this exercise 
http://www.marinedataliteracy.org/ops/circ_mod_direct/circ_mod_direct.htm

and found that if I pasted http://tds.hycom.org/thredds/catalog.xml    in IDV data catalog, select the "all level data at 00Z" to add source

, then I got error message  like this ;

Does the HYCOM do not provide the Component. GRID anymore ? 
Which other HYCOM product can I use to make example of visualizing vector plot data then ?

Many thanks to all experts here,

Lamona
Oseanografi ITB