Comment 9 for bug 248324

Ahmed is right. Here's a detailed description. The icon farthest to the left (on the RIGHT side) should be the battery indicator. Place your cursor just to the left of it and uncheck "lock to panel". You can then click and drag, and both the battery and network indicators will move. Move them to the left to create a space. Right-click the space, and click "add to panel". Add whatever apps you want. It took me a few minutes to figure out, but once I realized it, I was like, "Duh..."

Hope this is helpful!