Trouble Installing Webcam Drivers on Ubuntu 11.04

[bigdayang]

I've been trying to install all the drivers for my laptop that I recently installed Ubuntu on and I've been having trouble installing the driver for my webcam. I followed the instructions on Ubuntu Documentation > Community Documentation > Ov51x (sorry but I can't post links) but I'm having trouble with preparing the installation files with the "make" command. This is the message I keep getting:

(See attached picture)

Also, as an aside, I often get the message when I'm trying to install a package that it is "Unable to locate pack ______". Does anyone have any ideas on that? Thanks!

[wild at heart]

Are u using external web-cam ??

and do you Install web-cam Software like Cheese Web-cam Booth or Camorama Web-cam Viewer from Software centre ??

[wild at heart]

Download and install Cheese using the following steps:
Try this it may work :

1. Open a terminal window.
2. Type in the following command

      sudo apt-get install cheese

3. Run Cheese. Cheese should automatically detect your webcam and display live video stream.