Yeah, sorry about my last post, I've just been on edge lately, I'm worried for my secret Vivid... but yeah, it's not stock, Sense or the Vivid's stock ROM doesn't have a number in the battery icon.
This has already been covered, did you read any of the thread? For the HTC Vivid on Gingerbread: Power + Home. For the HTC Vivid on Ice Cream Sandwich: (Power + Home) or (Power + Volume Down for 2-3 seconds). And on different, custom ROMs, there could be other button/captive combinations.