Edit: Problem solved, thanks anyways guys.

What are you using your different partitions for? What's the fat16 for? Where's Vista? Are you using your last partition (sda3)? Help us help you

I didn't even know I had any partitions! I'm so lost please help me out.

EDIT: ok I think that the one on the bottom is my main hard drive cuz it looks like it has 300 gigs. So I want to install onto that hard drive, but I want to partition off the part that Vista is already occupying.

Open a console and issue this command: cat /etc/fstab. Fstab lists devices (in this case, hard drives and partition numbers), their mount points, and the filesystem type. That should give a better of what is installed where.

I suspect the partition /dev/sda3 will be the place to install Ubuntu. It it turns out to be so, you would be better off using windows tools to resize /dev/sda3 to create free space at the end of /dev/sda3. Then boot the Ubuntu cd, and use Ubuntu to select the free space and create your swap partition, and your Linux partition to install Ubuntu into.

ubuntu@ubuntu:~$ cat /etc/fstab
unionfs / unionfs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0


^um???^

Also, what is/ how do I creat a swap partition or Linux partition? For that matter how do I even select the free space??

To edit partitions in xp, use Control Panel -> Administrator Tools -> Computer Management -> Disk Manager or Partition Magic (third-party).