Applied for H1B exempt from India & travelled on previous H1B visa to USA,H1B exempt pettion approved can i stay in USA

My H1b Visa was about to expire in 4 months so i applied H1B exempt from India & travelled to US immediately on previous H1b Visa. Now my previous H1B Visa & I94 expired but my H1B exempt petition is approved & valid till 2017. As my H1B exempt petition is approved can i legally stay in USA.

Some are saying i have to step out US for Visa Stamping or do an I129 ammendment. Please advice