Does this work on PHP 5.3.6 without any problems?

I've been testing on PHP 5.3.6, with no problems.

Although I don't remember receiving it (admittedly I'm very forgetful), I appreciate it :)

Very bad mod for anyone interested in search engine traffic as it blocks all search engine spiders,

Uninstalled.

What proof do you have that it does?

because i tested it?

use a search engine spider simulator this google one for example:
install the mod and search one of your pages it will return a 403, uninstall/disable the mod and it returns to normal,

anyone using google tools can also submit a sitemap and see the full list of urls returned as error pages

So... you used something that spoofs the User-Agent? http://whois.domaintools.com/66.115.160.58 is the IP that site sent, obviously not owned by Google - the script checks the IP as well.

As for sitemaps, just checked that as well - no problems here, Google was able to access them just fine.

my google sitemap is showing a list of errors on every page and adsense adverts are not displaying as the adsense spider can not access the page either,

if you have view spiders enabled on your forums you should notice that no spiders are showing after installing this

could possibly be a conflict with another mod, i'll do some checking

I have no such issue on my site. What settings do you use?

how this work with vbseo?

i got a ip 74.86.16.2, which it seems it got blocked , not sure :S