I think the Alt+F10 key combination is the one to get you into the recovery partition.
When you start the machine, you probably see an Acer logo. When you see that logo, there is probably text on the bottom of the screen with options to enter setup, boot menu, or the recovery partition. At that point, you should hold the Alt key down and tap the F10 key.
I didn't realize you are using a netbook and that it doesn't have a optical disk drive. You mentioned that you have an external USB CD disk drive. Do you know that it works?
Now assuming that the USB CD drive works and that you have the install disk, you should be able to use F12 when it starts to get to the Boot menu. From there, you can use the arrow keys on your keyboard to select the USB drive.
See if some of that helps. Please note, I have a hard time reading your posts. Proper grammar and correct spelling helps.