[Health Tab; proper interpretation?]

I am on Windows Vista and like Defraggler.  I've looked all over the site (help dos and forum) to learn about the information on the Health tab.  Found nothing.   have a few numbers that look bad:

 

187 Reported Uncorrectable Errors 281,470,681,743,430 100 98 0 0x000000000046

203 Run Out Cancel 429,547,847,588 100 100 0 0x0000030BFFA4

196 Reallocation Event Count 447,807,488 100 100 0 0x00001AB10000

 

I will running Boot - Defrag and ckdisk to see if the some errors get fixed.

 

I would like a listing of the items on Health Tab with definitions.  Is that available?

 

Thank You

Christine