Sorry was out of town for 2 weeks, here is how it works.
To use AniDB it is required that you have a developer ID which is gotten from the Wiki, however as currently we are using the HTTP API it only allows limited access so more than a few access attempts at a time result in bans. For instance the code currently is designed with random waits and random counts so as to reduce this possibility, however even then it can can result in limited bans. I'm looking into using the UDP API to perform the same actions as this works much better (individual accounts), but so far it appears I may need a Java helper for this to work (I have gotten that to work), since doing in pure PHP is looking to be something of an issue.
In the mean time if you do not wish to get a developer account or even if you do then per-populating anidb will help alleviate bans, I have made the DB and covers for a full export (as of 4PM EST 11/23) available on dropbox using the URLs below.
The DB
https://dl.dropboxusercontent.com/u/106119348/anidb.sql 9Megs
The Covers
https://dl.dropboxusercontent.com/u/106119348/anime_coves.zip 451Megs
The DB is required the cover well make thing pretty, but are not required.
Simply copy the covers to the correct location and import the DB and you are ready to go. As I make progress on the UDP setup hopefully this will become a thing of the past, but first I need to catch up on 2 weeks of real work (the kind that pays the bills

), I'm hoping to get back to this by next weekend.
ERIC
FYI for information of getting a developer ID see
http://wiki.anidb.net/w/API, but again ensure you per-populate the DB, otherwise it will take about 3 weeks to get the entire listing.