Glad to help.
By the way, to access your sites worldwide, all you need is a domain and DNS service, and of course, configure Virtual Host in wamp/apache2/conf/httpd.conf.
For dns, you can find some free service like dyndns.org, zoneedit.com, so on, I personally use zoneedit. For domain, you can find cheap domain or even free; I personally go for Yahoo with only $3/yr up to 5 yrs, so total $15/5yr
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