After "Read this first" and Facebook

Ok - so thanks for the malware removal "Read this First" that took a while to complete but worked!! However, after creating multiple accounts for myself and my children we cannot get the app of "I Like" (music player) to connect on Facebook. Obviously my profile is adminstrator and my son's is limited user - I have Avira AntiVir Personal and Outpost Firewall 2009 running and have SpyBot and Spyware Blaster loaded and set as suggested in the end of malware clean up. What do I need to do to get the apps to work on Facebook? Thank you for your time!!