Sorry for the slow reply. I’d hope you’ve resolved this by now, but I will try to help if you still need it. Is the problem that the links refer to another site and you cannot find where to change the URLs to use the correct site? These can be difficult to find. In one case I’ve encountered the theme developer base64 encoded the URLs! And no, it was not some sort of sleazy spammer site, it was a legitimate commercial WP theme.
If you know what the wrong site’s domain is, try searching the DB for instances of it. The interconnect/it tool is good for this because it properly handles data in serialized arrays.