The backlink is very huge, but Only homepage indexed in Yahoo any sugestion? penality? Thanks for the help
It means that you have been blacklisted by Yahoo! Contact them via http://help.yahoo.com/l/us/yahoo/search/webmaster/webmaster_support.html and they will let you know the problem
The problem have simple solution create sitemap. Verify your website in yahoo and also submit your sitemap. I am sure your all webpages will start indexing
Try to get back links for your inner pages too. then all of your links are enabled and captured in yahoo.
If you submit a sitemap listing all your pages then it is most probable that yahoo will index all the pages.
how long your website is online ? yahoo crawl site too late. try to submit another file in your website e.g. contact.php to siteexplorer.. or even better submit the sitemap.php as mrflashplayer said.. be patience, good luck and keep trying..
Yahoo is like that, don't worry... Yahoo never index like Google.. If you have thousands indexed by Google, Yahoo will just index some hundreds...