Keyboard question

[Parabyte]

I just got a new laptop that has a keypad on the right side. Problem is, to edit maps you need to use the [Home] and [End] keys to change wall textures. Those two keys are the same as my 7 and 1, respectively. 9 and 3, which is [PgUp] and [PgDn] work fine. I have seperate [Ins] and [Del] keys. Any solutions?

Also, to enable/disable the keypad, I use [NumLk]. Even with it on or off, it still doesn't work.