Only index page in Google after 6 months

[i_am_dhaval]

i recently got new project a company base on usa
it is a travel site
Total page 126
i will complete on page optimization for all pages .
now problem is in google only index my home page(index.html) .
this page index last month
an still my other page not index in google.
Why it happen?
When My other page index in google?
Please help me

[tedster]

Make sure you've got navigation that works for a spider, and not just for a human. Straight html anchor tags and text links are a must. Also make sure your robots.txt and robots meta tags are valid and accurate.

[bakedjake]

Make sure you're not using any program that is cloaking based on session-IDs. Some programs try to be helpful, but really aren't.

[i_am_dhaval]

When I c my robot.txt file