multi day scan

Okay, I have converted, tried and tested your 1. Appears to work and found GCL today April 1st 2008.  C=CLOSE O=OPEN are interchangable in BS.

((((((hist(C,2)>hist(O,2)*1.0025 and hist(L,1)>hist(C,2))and hist(O,1)<hist(C,1)*1.0012) and hist(O,1)>hist(C,1)*0.9988)and hist(L,1)<hist(C,1)) and hist(H,1)>hist(C,1))and C*1.0025<O)and C<hist(C,1));

The narrowest range in 4 is the size of the bar, so if the bar looks smaller than the previous 3 then its doing its job.  You almost had it,  each part is only comparing the 1st bar, not each bar with the other. 

Jalna that's easy to do using the History functions. Hist() or Ref() or Prev.  Any number of days back to the beginning of chart.

Here's a useful scan called NR4 (Narrowest Range in 4 bars/days).

  H-L<hist(H-L,1) and H-L<hist(H-L,2) and H-L<hist(H-L,3)   

See if you can make one that scans for an NR7 and inside day.

Here's info on how to trade them: http://www.trading-naked.com/insidebarNR4x.htm

Cheers!