Sefton, Looking at your images it looks like someone has had a go at fitting it.
The 1st picture shows the pipework running across the front of the engine near the auxillary Belt and also visible is the alternator.
The 2nd picture shows the pipework coming from the Bulkhead (piccy courtesy of Auto Addict?)
Having looked at your pictures someone has obviously had ago as like tunnie mentions in a previous post you also have the condenser unit fitted.
Thing which i find strange is the radiator has not been swapped as the one fitted is for a non AC car, same goes for the Fan aswell.
In one of your pictures you can see a black pipe running from the bulkhead does this run to anything? (5th Picture down)
Hope this helps to confirm your suspicions