How replace FP Advise.vi using FP read for the example "Frequency Measurement.vi"?

I have a Labview 8.5 system and a hardware FP-CTR-500, and I tried to modify the NI example (Find example ----> Frequency Measurement.vi) to measure the signal frequency. 
But the example FP Write.vi and FP Advise.vi have some problems. 
Could you please show me how to correct it? 
Thanks!
JL
Attachments:
Frequency Measurement.vi ‏47 KB

Hi JeffLi,
Could you please be more specific about the error you're seeing?  
Thanks,
Bobby Breyer
Applications Engineer
National Instruments

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