Pl help: Plugin not working

1) Does this plugin work for 3.5+ version? I tried but it did not work.. How to make it work? Can anybody pl help?

2) Also pl let me know, how this plugin is different from the following plugin:
http://ww.wp.xz.cn/plugins/networks-for-wordpress/

http://ww.wp.xz.cn/extend/plugins/wp-multi-network/