Q: trying to log on to itunes i get error 0x80090318 can any one help

Hello there, addoal.

The following Knowledge Base article offers some great information in regards to your error message:

iTunes: Possible iTunes Store errors

http://support.apple.com/kb/ts1424

iTunes Store reporting error 0x80090318

Apple software on Windows: May see performance issues and blank iTunes Store

Thanks for reaching out to Apple Support Communities.

Cheers,

Pedro.