Can I assume that you have faollowed the correct steps to burn the cd? Once the CD is done, That is the burning progress bar disappears, does the cd icon still show up on your desktop? If yes, then click once on it, and hit the apple and E keys.
Once you have ejected the cd with the paperclip, can you insert the cd, and be able to view the files you burned?
I have noticed on my VST CD drive that the open button does stick. But it could be that I am not pusing in the button correctly.
The VST drive is made by SmarkDisk. Tier web site is:
http://www.smartdisk.com/products_Expan.asp
(it is called an expansion bay)
I chceck out the FAQ, but your problem is not listed, so I suggest you go to this web site:
http://www.smartdisk.com/SupportStorage.asp
and click on the email icon, then tell them what the problem is. You must explain exactly what you do(burn from the finder), what OS you are using and what model powerbook you have.
They should answer you within 24-48 hours.