Trouble uploading to external site. Could CIS settings be my problem.

Hi. Sorry if this is posted to the wrong board. I’m a bit of a IT idiot. I’m trying to upload pictures to a site building site (Moonfruit.com) but it won’t let me. Their support team suggest that it must be a problem at my end as they have successfully uploaded onto my page. Could CIS my settings be wrong? I do upload pics to Flickr and Facebook regularly and without problems. Please can you suggest a solution? Or let me know if I’m way off the mark?! Thanks

Can you show me the logs of the firewall around the time you are uploading to Moonfruit?

Do you use an application to build sites that you use for uploading? If so, what rule did you give? Look under Firewall → Advanced → Network Security → Application Rules.