Cell standby is the power used by the cell radio while it's on, but not in use.
Phone Idle is the power used by system processes while the phone is on, but not in use (screen off)
Phone idle seems high. What is the actual time that it ran? (If you click it, it shows you the actual time or CPU foreground time for an app/process) What's your battery life at, and how long since unplugged?
I'm at 14h 21m 27s and my top five are:
Mediaserver 64% (I listened to almost 10 hours of music on headphones while at work)
Display 15% (It was only on for 57m 11s ou tof 14h... My usage is abnormal)
Phone idle 8% (13h 24m 16s)
Cell Standby 6% (14h 21m 27s. Time without a signal was 0%. If that number is high, that could be contributing to your poor battery life. Greatly.)
Android System 3% (CPU Total 7m14s, CPU foreground 4s, Data sent 121.23KB, Data received 193.93KB)
My usage is odd during the week, because I work construction, so I really only use the MP3 player with the screen off most of the time, and only send the occasional text/email or do a bit of web browsing on my lunch break. I'll try to remember to pay attention to these stats this weekend, when I'm actually using my phone like a normal human being.
Edit: I have a BP7X, so my battery life isn't to be expected, but the percentages should still be equivalent.