Don't worry! It's only stuff...

get Google Plus One module for your Drupal
http://drupal.org/project/google_plusone

/admin/build/modules
enable
Google Plus One +1

/admin/settings/google-plusone
Display the button on these content types:
enable
Page

Display the button in these view modes::
enable
Full node

Include count?:
No

Size:
select
Small (15px)

Optional wrapper with CSS:
margin: 4px 4px 14px 14px;float:right

/admin/user/permissions
google_plusone module
view google plusone
enable
anonymous user
authenticated user

homepage
http://drupal.org/project/captcha

download
http://ftp.drupal.org/files/projects/captcha-6.x-2.1.tar.gz
extract
upload to /sites/all/modules

enable moulde
/admin/build/modules
# Go to Administer > User Management > CAPTCHA
# Check "Add Add CAPTCHA administration links to forms." option.