If your looking for a gravatars plugin for wordpress go with Gravatars2 by Kip Bond. “It is a modified version of skippy’s plugin with the following inhancements.”

* Caches “No Images” and Errors (in addtion to images, of course)
o Separate cache times for all 3 cache types
o Greatly speeds up page loads which are slowed down by having to check the gravatar.com server (and removes a LOT of load from the gravatar.com server)
o NEW: Uses “fsockopen” so that ‘allow_url_fopen’ is not required to be On. Speeds up caching times by allowing a socket timeout of 10 seconds (configurable).
* Cron supported
o Unix-type “system cron” job can be used to have all cache refreshes performed by the server, without user interference
o Skippy’s “WP-Cron” can be used if a true system cron is not available (Gravatars2-WPCron updated for clean integration)
* “Local” and “Global” gravatars are cached in separate directories
* Cache management (refresh/delete) split out to “Management” tab
* Various other things which may or may not be noticeable to you, but are good

This plugin is definitely alot faster and alot easier to use.