from http://thenomercyzone.clicdev.com/f/index.php?trk=thenomercyzone&showtopic=32090
Credit: cmx

Menu Hacking

Starting Addresses
Multiplay Menu
802B75D4 - Exhibition
802B765C - Royal Rumble
802B76E4 - Pay Per View
802B776C - King Of The Ring
802B77F4 - Guest Referee
802B787C - Ladder Match
802B7904 - Ironman Match

Singleplay Menu
802B798C - Championship
802B7A14 - Survival

Commissioner Menu
802B7A9C - Smackdown Mall
802B7B24 - Options

Arena Select Menu
802B7BAC - RAW IS WAR
802B7C34 - No Mercy
802B7CBC - Smackdown!
802B7D44 - King Of The Ring
802B7DCC - Summerslam
802B7E54 - Survivor Series
802B7EDC - Royal Rumble
802B7F64 - Wrestlemania
802B7FEC - Backlash
802B8074 - Armageddon
802B80FC - Arena Select Image

Player Select Screen
802B8184 - First Option
802B820C - Second
802B8294 - Third
802B831C - Fourth
802B83A4 - Fifth
802B842C - Sixth
802B84B4 - Seventh
802B853C - Eigth

Match/Order (RR) Select Screen
802B85C4 - First Option
802B864C - Second
802B86D4 - Third
802B875C - Fourth
802B87E4 - Fifth

Belt Selection Screen
802BA51C - Non Title Match
802BA5A4 - World Heavyweight
802BA62C - Intercontinental
802BA6B4 - European
802BA73C - Hardcore
802BA7C4 - Light Heavyweight
802BA84C - Women's
802BA8D4 - ?????
802BA95C - Portrait
802BA9E4 - Belt
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here's the part where I talk real analysis:

0x00-0x03: ????
0x04-0x07: X position (floating point?)
0x08-0x0B: Y position (floating point?)
0x0C-0x0F: ???? (00000000 for Exhibition)
0x10-0x13: ???? (00000000 for Exhibition)
0x14-0x17: ???? (00000000 for Exhibition)
0x18-0x1B: ???? (00C5FF00 for Exhibition)
0x1C-0x1F: ???? (0000F690 for Exhibition)
0x20: Size Modifier (04 for Exhibition)
0x21-23: ???? (000000 for Exhibition)
0x24-0x25: Graphic pointer (XXYY where XX = Category & YY = index within category)
0x26-0x27: ???? (0000 for Exhibition)
0x28-0x2B: Options Pointer ("Specifically goes to a series of addresses which
allow you to choose what options you want to go to.")
0x2C-0x2F: Size Pointer ("Points to other addys which can change
the size of the graphic.")
0x30-0x33: Properties Pointer ("This points to another set of addresses that do
various things such as color, flashing, and glow effects.")
0x34: ???? (00 for Exhibition)
0x35: Glow (00 = default, FF = none)

Each part is at an +/- 88 hex offset.