Install social networking script

Need to modify a social networking script like PHPizabi or similar. It is important that the 'Import email addresses from gmail or yahoo or others' should be incorporated for inviting friends. I also require the following feeds from this site to display on other sites : A link for latest blog feeds A link for latest members A link to latest videos A link to latest pictures A link to latest forum messages etc (Need these so that I can use these feeds to incorporate in my other sites) Site needs to be search engine friendly. If you want, I can do the basic installation and give you the admin and ftp details for making changes. (Finally, I had already installed elgg earlier but am changing my mind due to unavailability of plugins and import of emails option. If you can do this, we can continue with elgg)