Still I'm waiting... anybody is there for answer my little question? Is it look like a cheap question??
Google Indexed your site but not cached your site yet. Index make website can be display in results page, and cache help website can be seen from Google Cached (store on Google server), and still see event site death.
Google indexing is a process to make a webpages searchable on search engine where as cache refers to providing a reprinting content snapshot.
They are totally different. Cache means they have a snapshot of your page in their memory, but indexed means they have the information that the page exists. When they cache a page, it means, the page is also indexed.