The first part, if I understand the problem.
A normal user must have root privileges, usually as su or sudo with the root password, to have access to a systems partitions and its partitioning tools. As partitions can not be changed while they are mounted, and nothing runs without being mounted, a partitioning CD is often used for work on the partitions of an existing installation.
Try opening a terminal and typing "su" or "sudo", depending on your distro. You should be asked for your password. Enter it and then type "fdisk -l" and you will get to see your partition table. You might type "man fdisk" first to see what fdisk is and can do.
Two live-cd partitioners that are used are Parted Magic and GPartedLiveCD, but any linux live-cd should also do the job. Rescue and forensic live-cds also have partitioning tools.
Here is the standard live-cd list.
You might also googe for more information on partitioning and permissions in linux.
For the next time, you might read this and try to edit your post for clarity.
Written English for a non-native speaker can be difficult, but you might get a greater response if the meaning of your post was easier to determine. I guessed what you needed for information, but I might be telling you what you already know.