Hard Drive Erase Help

I am trying to erase my hard drive and do a clean install. In the process I accidentally made a partition of half my drive as free space. I tried to convert it to journaled but when I click apply nothing happens. I made a Mountain Lion Install USB. I have booted from it and entered Disk Utility. I figured I'd go ahead and erase it and it would give me the free space back. However, when I click on my drive I only have the First Aid and Partition tab. I am posting pictures as to show you exactly what I'm looking at.
The first picture is to show that I don't have all the tabs that I think I should. I should have an Erase tab along with a couple more I think.
The second picture is where I accidentally created a huge partition of free space. When I click apply to make it journaled nothing happens.
What should I do?

I think I know the issue. This is your startup drive. You cannot make changes to it while booted from it. You must use the Recovery HD partition to make the change.
Drive Partition and Format
1. Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
2. When the main menu appears select Disk Utility and click on the Continue button. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Select the partition you don't want at the bottom of the partition map, then click on the Delete [-] button. Click on the Apply button.
4. Now use the triangle gadget in the bottom right corner of the remaining partition and drag it to the bottom to make a single partition. Click on the Apply button.

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*"about invalid sibling."*
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http://discussions.apple.com/thread.jspa?threadID=464031&tstart=0

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Reinstall Lion:
Reinstalling Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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I appreciate your help. I'm going to start from the beginning because I'm still missing something and I'm just about to give up.
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Hard Drive Erase Help

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