You'd be 10-100x better off approaching this with a Python in your hand, than just narrowing in on Bump, without a script.  In fact now that I am getting abetter look at your avatar I'm seeing that your figure is an awsome candidate!  What texture is it?

Running and Writting a Python Script are two totaly different things.  Running a script is as easy as anything else in poser, if not easier, becasue you need to keep it in your Runtime.

To Run a Python Script(The easy way) click:

File  > Run Python Script > Browse to the script > Click Open > and the script window will appear.

To Run a Python with the Python Pallette click:

Window > Pythons Scripts > Then click a blank button > Browse to the script > Click Open > Now that blank button has your script on it so click it > And the script window will appear.

That blank button will now continue to be that script you loaded into it, as long as you have Poser open.  There is a way to set what scripts the Python Palette will display by default, but that's complicated in P6, and you would'nt need this. just yet, in P7.