First thing I noticed:

Originally Posted by
OP
...a if statement C6>=now() as not...
...6>=now()...

Originally Posted by
also OP
This is the formula ive placed.
=IF(C6<=NOW(),VLOOKUP(B6,raw!A:D,4,0),"")
...C6<=NOW()...
you have swapped the "greater than", to "less than".
Second thing I've noticed:
NOW() delivers DATE + TIME.
Time is a serial number from 0 to 1.
The date value is an integer indexed from 0, at Jan 1, 1900. Today (June 21 2012) is 41081.
Column C, schedule, has the date value implicitly 0-- Jan 1, 1900.
So, your DATE values are completely washing out your time values.
Use TODAY() to strip out the date like this:
=IF(C6 >= (NOW() - TODAY()), VLOOKUP(B6,raw!A:D,4,0), "")
Third thing I noticed:
The value of "WO" is treated as greater than the time. I dunno if that's correct or not but it's happening.
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