shell command problem

[Thomas McGrath III]

Can someone guide me in the correct use of the shell command on OSX.

I have an app called "iRed" which comes with a command line  
application that I copied to the bin folder on my machine and from a  
terminal window I can execute the following "ired -send "Robosapien  
V2" "D" which works great. iRed is a program that can send IR codes  
via a USB device called "irTrans" to my Robosapien V2 robot.

Everything works fine from within iRed controlling the robot.
Everything works fine from the terminal window.
Everything also works fine using an applescript:
try
	tell application "iRed" to send ir Code "D" of RC "Robosapien V2"
on error
	beep
end try

& Everything also works storing the applescript in a custom prop in  
REV and then DOing the applescript.

The only thing I can't seem to figure out is how to run a command  
line directly from within REV. The docs say if I am having trouble to  
try the command line directly in a terminal window and it does indeed  
work fine.

----

I have tried to set the shellcommand to "/bin/ired" with no result.

This is my script:
ON mouseUp
     put field "myControl2" into tControl
     IF tControl is not "" THEN
         put the shellcommand into tShellPath
         set the shellcommand to "/bin/ired"
         shell (field "myControl2")
         -- put quote & "ired - send " & quote & "Robosapien V2" &  
quote & " " & Quote & "D" & Quote into tred
         -- shell (tred)
         set the shellcommand to tShellPath
     ELSE
         revspeak "OH OH"
     END IF
END mouseUp


This is the error I keep getting:
Tue, 29 May 2007 10:37:43 -0400

Chunk: can't set property
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 24

Object: does not have this property
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 13

put: error in expression
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 1
Processing: mouseUp

Chunk: can't set property
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 24

Object: does not have this property
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 13

put: error in expression
Object: button id 1043 of card id 1002 of stack "/Applications/iRed/ 
Robosapien.rev"
location: Line 943 Char 1