Maybe you can monkey with code like this for scaling the texture. Browse way back in this thread and there may be some more info.

Code:

//////////////////////////////////////////////
float2 WaveDir;
float SpeedComp = {0.02}; // Adjust depending on the 
                          // RippleScale setting

WaveDir.x = IN.Bump.x * RippleScale; 
WaveDir.x -= (vecSkill41.x * SpeedComp); // Direction of U (either + or -) 

WaveDir.y = IN.Bump.y * RippleScale;
//WaveDir.y += (vecSkill41.x * SpeedComp); // Direction of V (either + or -)

Out.Bump = WaveDir.xy;
////////////////////////////////////////////


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