Kiran, I cant thank you enough for the time you are taking to help. Its probably more of a case of me not understanding SAP properly.
The orange parts a parts we buy in complete. The blue are parts we make from these and our own, the green bits under them are the processes that accompany them. Some of the parts we want to track at certain points of the process to see how man we have in WIP.
However the problem thats arising is that SAP doesnt know how many we have in WIP. It only knows how many parts have had the final operation applied to it. (So I'm told)