What engine do you have?
The CRD (diesel) location is different then the 3.7.
The CRD reservoir is not attached to the pump it is on a separate bracket behind the air box.
See this thread. Post 3 Picture, white tall skinny bottle.
viewtopic.php?f=5&t=39327&view=nextNot 100% sure the location is exactly the same in your ride if it is a CRD, but the reservoir will look the same.
For the 3.7 see this thread.
viewtopic.php?f=104&t=81063Post 1 Pic 17
Center right of the Pic you can see the black cap next to the upper radiator hose and generator.