Problem with Proteus Simulation - please helpp

I built the attach circuit, I was simulating a solar panel buck boost voltage regulator to regulate the output voltage.
The problem is that while it works and shows the appropriate output. It doesnt't show the current, I attached probes in the circuit, but it shows I have little to none current passing thru the circuit.

I don't know what to do.

Please help

P.S. I based the buck-boost circuit from here
http://www.onsemi.com/pub_link/Collateral/AN920-D.PDF
STEP UP/DOWN SWITCHINGREGULATOR OPERATION p. 18