I highly recommend something like this, especially for signups. Spammers target MU blogs to auto-register and then auto-create/post blogs.
I can confirm reCaptcha works flawlessly with a WPMU/BP install
I’m having problems displaying the error message (empty captcha / wrong captcha). I’ve set the messages in site admin.
Any clue why this is happening (on the /register page) ?
I’m not able to get this to show up on my register page. It shows up correctly on the comments pages. Ideas what I can try?
I am having issues with recaptcha on signup after an upgrade.
I have all new recaptcha plugin installed, new BP, WPMU 2.6.5., new recaptcha key.
When I register with recaptcha on it loops between initial sigup page and blog title page.
Turn off recaptcha , all is good.
Need recaptcha , I get way too much spam signups.
Any ideas?
cdaniel09 – you need to move up to wpmu 2.7
i am on wpmu 2.7 bleeding edge and i ahve installed the plugin and i dont seem to be able to have the captcha form on my signup page…
http://spotskenya.com/wp-signup.php
any thoughts
You do now.
Small spelling error, I assume – hotells.
Anyone got running this plugin on sign-up page with 2.7.1?
in comments it works, but i can’t see it on register page and i have no idea how to make it work there.
@Sinan,
I’m using it with WPMU 2.7.1/BuddyPress 1.0. Here’s where I have the plugin files located:
wp-captcha.php and wp-captcha.tff – in wp-content
wpmu-signup-captcha.php – in wp-content/mu-plugins
Works beautifully for me.
Works here too. I had troubling setting it up originally, but that’s because I hadn’t read the readme.txt carefully to do what @Jfcarter above has just said.
doh! i hate that readme.txt, i get lazy now and assume that the plugin activation works for everything. thanks for this guys, mine is working now as well.
@Jfcarter,
Thanks for the answer, In the meantime i found that solution too, and works fine.
But it seems that this is not the re-captcha plugin what i meant. What i meant is the plugin from http://recaptcha.net/.
Now i have in register page wpmu-signup-captcha.php working, and in comments and posts wp-recaptcha…
Anyways if i find a better way i will post it here.
This plugin is now integrated better in BuddyPress and it’s included in BPDEV NoSpam http://bp-dev.org/download
Hi again, I have slightly changed the mu-plugins/wpmu-signup-captcha.php to fit better on signup page’s design, if anyone interested you can change the lines 37-51 to the following.
<style>
.captcha_img {
display: inline!important;
float: left!important;
margin-left:10px!important;
border: 1px solid #888a85;
border-radius: 3px;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
-khtml-border-radius: 3px;
}
.captcha_label {
display: inline!important;
float: left!important;
line-height: 50px!important;
}
</style>
<div class='field-box'>
<div class="extra-field">
<div <?php echo($error ? 'class="error"' : '') ?>>
<?php if($error){ echo $error; } ?>
</div>
<div class="signup-label">
<label class="signup-label captcha_label">
<?php _e('Verification:')?>
</label>
<img class="captcha_img" src="wp-captcha.php?rand=<?php echo rand(0,999999)?>" alt="Captcha code" border="0" />
<input maxlength="12" name="captcha" type="text" value="" />
</div>
</div>
</div>
i put the styles in php file which is a bad practice but you can always take them yo your custom.css file.
i’ve instaled wp-recaptcha with the instruction in readme file but the error messages aren’t shown… any idea to resolve this problem? thanks
Hey all, sorry to bump and old thread, but it’s related, I promise 
I’ve installed reCAPTCHA in the plugins folder, and it works brilliantly for comments. (For that matter so does wmpu-captcha in the mu-plugins folder) But neither seem to work on the registration page.
Working – http://thompsonjason.org/2009/04/11/hello-world/#comments
Not Working – http://thompsonjason.org/register
Is there a bit of code that I should be inserting into my registration page to make reCAPTCHA show up. I’ve been getting a lot of spam accounts being created lately, so I really need to get this going before we can launch the site. Any help is greatly appreciated.
This doesn’t show on my signup page either.
It’s not showing up on my signup page either. I’m using BP but not MU.
This is an old thread.
Basically, the WP-reCAPTCHA plugin needs to hook into the BP registration page actions for it to work.
It’s a 10-minute job at most.
Well, it’s only a ten minute job if you know how to hook it into the registration page.
That’s correct it is a 10-minute job if you know how. Didn’t mean to sound elitist.
If you can notify the plugin author, some of us on the forums can point him in the right direction.
Should I notify the WP ReCAPTCHA author? He seems to be rewriting the plugin for WP 3.0. I’m just looking for the instructions for “hooking it in” to the registration page. I can’t seem to find them anywhere. It sounds like if I had MU and BP running together it would work fine, but I only have BP, so I need the hack…
