Wordpress Plugin Fix and Changes

I have a Wordpress 3.01 site using Buddypress with Multisites / Network Enabled There are a few things I would like to do. * Header image to changes upon refresh or new day * Mass e-mail plug-in (send mass e-mail) from WPMU working properly * Blue hyper-links off of profiles and other locations (links that don't go anywhere) * Auto message plugin working correctly - haven't actually tested it yet * Anti Splog plugin working correctly * Captcha or something to ensure humans are creating accounts when registering as we are getting a lot of fake accounts - but we DO NOT want e-mail verification turned on (currently it is turned off). Install and fully set up MEMBERSHIP plug-in from [login to view URL] - test, test and test to ensure if works without our site and is set up exactly the way we like it.