No I don't see anything but I know the player is still working because I accidently turned on the radio. I just don't know which combination I have to press to access the music folder.
In answer to your question and given that you haven't changed any of the default settings (hopefully). The structure should look like this.
Files
---##MUSIC#
---##PORT#
---ARCHIVE
---AUDIBLE
---AUDIOBOOKS
---MUSIC
I would imagine pressing the home button will take you back to the "Files" section. As the hold and return to normal position (slider switch) doesn't work for you, maybe using the voice file will help with speaking the folders to you.
Does the original Sansa firmware work for you?
Edit: If you use the "Home" button you will need to select (middle button) to enter the Files section.