1. Download this little Tool:
(I copied the URL in there because ePvP is blocking the URL)
2. Start the Trainer you want to extract.
3. Open the Tool.
4. Check you Desktop for a Folder named CE.temp or something like that.
5. The Folder contains 2 .cetrainer files. Now you can just open Cheat Engine and Drag&Drop the Trainer. Now you are able to see the whole Script list.
If you are not sure if the Trainer you want to extract is clean you can run both the Trainer and the extraction Tool in Sandboxie and search after the .cetrainer files.