AI's display windows are built from "virtual bars", you assign categories to bars so that items in that category are displayed on the specific bars you want. There is no limit to the number of bars you can have inside a window but obviously you only have so much screen real estate before it becomes "too many".

AI uses several methods to assign a default category to an item such as what professions you have, tooltip scanning, basic type/subtype and PeriodicTable. You then assign those categories to a virtual bar.

You can also over-ride the default category by creating a rule that matches either a single or multiple items.

Overview:

• unlimited number of bars (there are practical limits though before your screen becomes full)
  
• assign items to a category of your choice (overrides the default assignment)
  
• assign categories to the bar of your choice
  
• configurable bars per row
  
• configurable width
  
• display bank, bag, keyrings for current and alts across all realms
  
• separate keybindings for bag, keyring and bank viewing
  

Key Bindings:
Press ESCAPE to bring up the blizzard menu
click on Key Bindings
scroll down to ArkInventory
bind the keys you want to use

See ReadMe.txt and VersionHistory.txt for further details

FAQ is here http://code.google.com/p/arkinventory/wiki/FAQ. Please ensure you read it first before posting a problem

Beta Versions:

ensure you make a backup copy of your saved variables file before installing a beta version - you normally cannot revert back to the release version without that backup.

your saved variable file is normally located in World of Warcraft\WTF\Account\yourwowaccountname\SavedVariables\ArkInventory.lua

a simple way to back it up is to just do a copy and paste then rename the new file (using the version number of AI is a good idea), eg ArkInventory-3-01-09.lua

Latest Notes:
3.02.34 (09-FEB-2010) BETA 23-37

• fixed - openallbags (shift+b) should now work more like the blizzard version (it's not exactly the same but it is more logical)
  
• fixed - EraseSavedData( ) function was leaving some data intact, specifically guild bank gold

3.02.33 (02-FEB-2010) BETA 21-42

• added - fix corrupted categories caused by earlier betas

3.02.32 (02-FEB-2010) BETA 20-55

• fixed - issue with conversion of custom categories

3.02.31 (30-JAN-2010) BETA 10-46

• fixed - status bar not unhiding
  
• fixed - rule conversion issues
  
  3.02.30 (29-JAN-2010) BETA 18-57
  
• changed - bar names are no longer displayed by default
  
• changed - bar names are now on the inside of the bar and will swap between top and bottom depending on item anchor point
  
• changed - sorting is now done through sort methods, you create a sort method and then assign it as a window default (sort of like rules), you can then assign a different sort method to a bar so it sorts differently from the rest of the window
  
• changed - bar movement menu options moved to bar menu (for less clicking)
  
• changed - bar movement - reduced to 2 options, "move" and "move > complete"
  
• changed - item counts now recognize learnt pets and mounts being the same as the item they are learnt from (note this is a manually maintained table, see companion.xls, so may not be 100% complete or accurate)
  
• changed - LDB mount object - will only allow choices from a list of mounts it knows about (see companion.xls) so some of your mounts may not be available. if your mount isnt listed you raise a ticket with its name/spell id and i'll add it
  
• changed - LDB mount object - can now select a ground and a flying mount
  
• changed - LDB mount object - random option now selects a mount based on whether the area you are in is flyable or not, and will fall back to a random ground mount in flyable areas if you dont have any valid flying mounts
  
• changed - LDB mount object - random option will never select mounts with requirements, such as the standard AQ mounts, even if you meet those requirements
  
• changed - LDB pet object - will only allow choices from a list of pets it knows about (see companion.xls) so some of your pets may not be available. if your pet isnt listed you can raise a ticket with its name/spell id and i'll add it
  
• changed - LDB pet object - random option will never summon pets that need reagents, like snowballs, even if you have the required reagent
  
• changed - borders now use sharedmedia - all borders have been reset to blizzard tooltip
  
• changed - backgrounds now use sharedmedia
  
• added - config option for how much space/padding to allocate for bar names, default is 12
  
• added - LDB mount object - option for minimum mount speed when random is selected
  
• added - keybindings for pet and mount summons
  
• added - support for tracked currencies, set via the standard blizzard interface
  
• fixed - issue where deleting an entire stack or learning a pattern/recipe wasnt updating its item count
  
• fixed - honor points should now use the proper faction icon
  
• fixed - arena points should now use the proper icon
  
• removed - conversion of old data structures prior to v3 is no longer possible. if you have a version that old then you will need to delete your arkinventory saved variables file