WordPress MU

I installed reCAPTCHA in http://soulblog.net
I inserted both keys(public and private)
I activated it in my wp mu site
Opened in all browser the registration and comment pages
Cleared cache
Still it is not appearing.
Please help me
I dont understand what the problem is...
Please help me solve it

Which instructions did you follow to install it?

Wordpress MU Beginners Guide 2.8 from packt
Just installed it from upload plugin in admin panel
Then entered public and private key
I contacted server and they said Both GD and FreeType are installed on the server.

So please do help me with it

As I haven't got that book can you please tell me just exactly what you did, where did you get the re-captcha plugin from etc.

Tks, got it fixed
Server persons reisntalled

http://mu.wordpress.org/forums/topic/16010?replies=2
http://mu.wordpress.org/forums/topic/16008?replies=1
http://mu.wordpress.org/forums/topic/15997?replies=1

If you do have time, please help me with these 3 more threads. They are really bothering me :(