I've tried creating new keys. To the websites:

*.claimsheaven.co.uk/*
*.1to1legal.co.uk/*

and to the IP address:

78.137.115.177

They still all return a message saying I need to generate a new key?!

i got an email the other day saying they are deprecating v2 of google maps, and moving to v3. are you still using v2?

i didnt think that the change was happening for another two weeks though, so perhaps its not that.

Your JavaScript has a syntax error on line 175:

map.addOverlay(createMarkernew(new GLatLng(,), '<table width="340" border="0" cellpadding="1" cellspacing="1"><tr><td width=\'270\'><h3>SA Legal</h3></td><td align=\'right\' valign=\'top\' rowspan=\'3\' style=\'padding-top:9px; margin-top:6px;\'>' + adv_logo_var + '</td></tr><tr><td>'+ adv_add_var +', London, EC1V 4PW</td></tr>'+ adv_ph_var + adv_email_var + adv_web_address_var + '</table>'));

Unexpected token ,

Fotiman, you are a god! Thank you!

We just added a new advertiser and didn't notice the non-acceptable '

For JavaScript issues, one of the first things you should do when you see an error is press either f12, or ctrl + shift + J. In most browsers, one or both of those will bring up the web console which will often contain helpful debugging information.