Hey Jack, I decided to do now and IT WORKED!!!!!!!!  The key was choosing the proper menu option on the resource cd main menu. I believe it was choice # 4 -- "exit to a DOS prompt"...which I did not choose yesterday but did today. Thanks again for all your help! All the best. 
I'm trying to upgrade my Dell 4400's BIOS (version A02) to version A06. I downloaded  it and executed it; however, it's requesting that I insert a diskette in my B drive before it can continue. I uninstalled my diskette drive years ago and do not have it to reinstall. I do have a CD/DVD drive but it's not picking that up. How can I get around this? Using Windows XP. Thanks.
BIOS upgrade on Dimension 4400 - But diskette drive no longer installed