An interesting article that I saw fly past on RSS this morning is this one :

http://www.symantec.com/docs/HOWTO77124

It contains a list of links to downloads for various versions / service packs of Enterprise Vault.  It is definitely worth a check now and again, and of course if you are a consultant wanting to do a 'new' install or an upgrade, then have a look at the hotfix sections and Late Breaking News.