How are these ads appearing on my Yahoo email page?

I posted yesterday about receiving mailer daemon spam email on yahoo my email is an att email i tried to login today and my password doesn't work and i tried to reset my password yesterday but the steps i followed didnt show reset password in my account

I just photoshopped a custom signature I would like to use in yahoo mail, so I copied the end result and tried to paste it but that didn't work, so I uploaded it to photo bucket copied it from there and pasted it, it showed the image so I hit save and when I opened compose it's not there and when I...

Body of email... Dear Yahoo! User, This is for ALL accounts powered by Yahoo!. Your E-mail account needs to be updated within 24 Hours, If this is not done we shall suspend the account(s) you have with us. Click Here to update your email account now Thank you

My Yahoo home page and related yahoo pages won't display ads, does anyone know how to fix this. I have uninstalled IE8 reinstalled it, restored advanced settings and reset internet explorer it worked for a short while after i did this now its playing up again. Really annoying, I get the usual...

I've been running XP for some years and recently set up Win 7 on a new SSD. In XP and using Opera browser, if I clicked on an web page's email link, my email client (Sylpheed) would open with the address inserted. With Win 7 and the email defaults set, it won't. Instead, it always returns an...