I am having trouble determining winds.  Let me explain.  I am using 0x02B8 for TAS and 0x3190 and 0x3198 for GS velocity calculations.  I apply winds through the weather section of FS2004, but I do not see a difference in GS and TAS.  They are still the same number (or close).  I have applied 34 knot winds in a certain direction, flew that heading and saw that the TAS and GS matched.  I would think that I would see TAS - 34 for the GS.  I used FS Interrogate to look at the ambient winds at location 0x0E90 and the direction at 0x0E92, and they matched what I put into FS2004.  Are the velocities at 0x3190 and 0x3198 not really ground speed?  I also noticed that other GS variables, like the one at 0x02B4, also match TAS no matter what wind I put in.  Has anyone else seen this problem or know what I am doing wrong?  Thanks for any help! 
Ryan