Pre Exec and Display Exec for Processflows

We're looking at implementing the Financial processflows (Journal Entry approval for example). We've got it workiing, but the actual display of the workunit in the inbasket, it's blank because the Pre Exec and Display Exec are blank within the flow file.

We're using the delivered flow file, and they are blank. I looked in the /execs and all other folders but I don't see any other applicable .htm files.

Can anyone tell me where to get the Pre Exec and Display execs?  Or do we write them ourselves?
It just seems that when Pflow is installed and delivered that the Pre Exec and Display Execs would also be provided....

Thanks in advance,

R0ger