seems it detected the tray, but not the drive. either through a jumper placement error or the bios didnt try to autodetect it. on boot up id go into my bios and see if its detected in there. if its not detected in the bios, windows wont see it. so go to the slot for your primary slave, and look for an auto-detect feature. if that doesnt work youre gonna have to manually set the drive parameters. which can be trickey, but all the data you have to enter should be on the drive label. hopefully it wont come to that, last drive that i had that couldnt be autodetected, i was installing it on a 486. machine
as for jumper settings, its really unusual theese days to have to change it from cable select. i remember in the old days of windows 98 it mattered, but 2000/XP, it no longer requires the operating system to be on the primary partition of the primary drive. your best bet is cable select, if its the only drive on the cable it will autoselect as master, if theres another drive and its on master or slave, it will set the new one as the oppisite, if theres a cs drive already there, the new drive will select whichever channel is free without changing the other drive. you will have errors if you have 2 slaves or 2 masters. for people using drive trays i usually recomend cs.