We have around six Joomla 1.5 sites on our server (Bluehost). All site are made using the same templates and components.
The problem: We are under constant attack by code injection...bringing all our sites down. take a look at one of them [url removed, login to view]
What we need: We need to know how they are getting in and what we need to update or fix to stop it.
The faster the better. It just needs an expert eye to look through our server.