I have down loaded a bea to delete other songs -also I have one auto book I am not able to delete

What is a 'bea?'

One way to delete songs (and maybe books) easily is to it through your computer, while the Sansa is tethered;

1) Download the Sansa Clip manual. Here's a link;
http://www.sandisk.com/media/327475/CLIP+_UM_0809_ENG+090309.pdf

2) Put your Sansa in MSC (Mass Storage Class) mode.
Go to Settings, then USB Mode. Select MSC mode.

3) Tether the Sansa to your computer. It will look like a USB flash drive.

4) Delete or add Music, or Books.
You can use Windows Explorer to look through the directories on the Sansa, and delete files directly, as you would on a USB Flash drive.

Special Note on Audio Books--
Get an extra memory card, 4 to 8 Gb should do, and use this as your destination for audio books. If you have a book that will not delete, you can pull the card and re-format it, while leaving your songs intact on the main memory.

If you cannot delete the book through the computer or by menus on the Sansa, you may have to re-format your main memory. Hope that helps!