CD/DVD DRIVE problem

[WDEWDAD7]

I had to re-install Hoster 4.32 after a mini crash deleted it and dropped me back to Hoster 4.20. I had the mini crash problem fixed. I have removable drives and when repaired last, someone forgot to put screw in to keep drive from moving. After re-installing Hoster 4.32, I went to import some new discs. Problem is, Hoster is not recognizing nor locating my drive. I think the problem is, when I had computer worked on, repairer changed my CD/DVD disc drive to letter Z. I have main drive C, back up D, USB..Toshiba Drive E, FreeAgent Drive F, and CD/DVD Drive Z. Anyone know how I can fix this so I can use my discs drive? I thank everyone in advance.
Computer System

Desktop
Microsoft Windows XP Pro
Version 2002
Intel (R)
Pentium (R) 4 CPU 3.00GHz
3.01 GHZ, 2.00GB of Ram

Hoster 4.32