should they judst see the site?
or be able to see the files also?
if you want them to be able to help with the design, then you will probalby need to use dropbox or googledrive to store the files and db, and then get them all to install wamp.
if its just to see the site, then left click wamp> put online,
you may need to open port 80 in your router firewall.
in the www folder add a .htaccess file with usernames and below the www put a htpass file.
you can find more about .htaccess for password protecting folders in the apache docs
Steven Martin
stevenmartin99@gmail.comstevenmartin99@hotmail.comPampServer.com - [
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