Thanks for the 'heads up'.
I'm hoping Freeola don't go for another password change as that caused me real problems last time round due to the number of domains I have! :¬(
It's more likely (let's hope!) that your site has been maliciously attacked with the iFrame inserted due to a security vulnerability with some software/package your site uses and not an across the board problem.
Can you say if your site uses any type of CMS (Content Management System) as these are often compromised? Also, do you make use of MySql?
EDIT: Runs off to check websites...!
EDIT2:
I can find a previous problem like this on Freeola (last summer) caused by a customer using a PHP based method to upload files bypassing normal FTP - are you using a normal FTP client to maintain your site?
If you are then are you able to rename and/or change file permissions etc.?
NB. If the site is the one in your profile then the iFrame seems to have been injected on lots (all that I checked) of your pages ;¬(
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