Looking for Scripts that Replaces Text and Master Pages (Batch Missing Files and PDFs)

I have just found the Script Library panel in FM 10. (Always used InDesign before.)

I'm up to replace a text string and two master pages in 100+ documents. Tried to google for some nice solutions to make this automatically but cannot find any scripts/macros to FM at all.

Do you have som tip where to find such scripts/macros?

To facilitate my work I also look for a batch script that automatically updates the image pathes in each framemaker file (image folder has been renamed).

And at a last FrameMaker -> PDF Batch converter.