I put the little plastic things in place of the screws and FINALLY it decides to turn on! Yah!!!
However, I now face a new problem...It says that "no hard drive detected...system halted"
Now, before I turned it on, I had set the hard drive to "slave and the DVD ROM to "master". I did this because in the mobo manual it states:
"Connect the cable's blu connector to the primary (recommended) or secondary IDE connector, then connect the gray connector to the UltraDMA100/66 slave device (hard disc drive) and the black connector to the UltraDMA100/66 master device."
So I set the hard drive to slave, connect the slave cable, then I set the DVD to master and connected the master connector...should I have done this or what???