NO CDRW after reformat can you help

hi, just joined this forum today , hello to all. I have a problem with my cdrw which is a Liteon, after making the mistake of letting someone reformat pc for me…( you know how it is,they know what they are doing!! and you believe them…big mistake) anyway my cdrw does not work now.It is in device manager where it says it is working properly untill you try it,udate driver and it says installed but device has problem. If I type e:/ in the run command box it will run,but try easy CD or similar and program cannot find device. Can you tell me how to put it right

win 98se
AMD Duron processor