How to open a specific folder
With finder selected use Command-Shift-G to open the Go To Folder... dialog. Then you can paste in folder locations and they will magically appear. No more navigation with the mouse, and importantly it'll open hidden folders you cannot normally access by browsing.
Credland Audio Plugin Folders:
User Presets and Logs: ~/Library/Application Support/Credland/BigKick
(The ~ character refers to your home directory. Make sure you include it!)
Factory Presets: /Library/Application Support/Credland
C:\Users\<user>\AppData\Roaming (Windows 7)