There are errors on that site and an advice from Sucuri’s to contact your hosting provider: http://sitecheck.sucuri.net/results/psicaraudio.com/3o1ut90luh.php
For the othger sites you should also consider a vulnerability in: WordPress TwentyTen Theme ‘loo.php’ Arbitrary File Upload Vulnerability
→ http://www.securityfocus.com/bid/57073/exploit → Attackers can exploit this issue through a browser.
polonus