Need SPAM HELP singups from JAPAN
 

Would like a way to block signups from other countries other than us, or a way to specifically ban certain countries

anyone know a way?

also birth dates, can i prevent signups from a specific birth date

You can block IP addresses in your .htaccess file, for example you could run something like this:

<Files *>
order deny,allow

deny from 000.000.000.000

allow from all
</Files>

This would prevent the bad guys from accessing your file system by the ip addresses you specifiy in the script.