H1B, H4 Visa

Hi,
    had recently attended my interview for H1-B stamping at Chennai Consulate at Chennai.My interview was scheduled for 4pm and i reached the consulate by 3:15pm on the 29th Aug.As soon as i reached the security counter,i was aked to show my passport as well as the interview appointment letter,which i showed and was allowed to enter the consulate.When i entered the consulate,a person enquired whether it was my first stamping,and i had explained to him that i already had my H1-B stamped in 1999 and i hadn't used that and i travelled to US later on in Mar 2000 on a B1 Visa(both were stamped at chennai consulate),i was sent to a counter wherein i mentioned the same and there was a form attached to my passport mentioning that

Dear H1-B applicant,
    Your H1-B visa has been issued with an annotation - "not later that 21 sep 2007"

If you attempt to board a flight before the said period,you would eitehr be turned down or will not be allowed entry at the US Port of entry.

After this , i was asked to go for the main interview wherein i had to go thro' the bio-metric(finger printing) of my left and right index finger.After this,i had to wait in queue for my turn at the interview at 4:00pm.I was the second last person to reach the counter for the day.When i reached the counter,i had initially placed all the docs in 2 separate folders,one carrying my experience letters including petitioners letters,I797,I129 etc.The interview started of like this:

VO: Hi, How are you doing?
Self: Fine,thank you,How are yo doing?

Silence for 2-3 min
VO:Please show me your degree certificates
self:(slided the cover containing my degree certificates as well as training certificates)

VO:How much time did it take for you to undergo these training?
self: tese were taken at different stages,around 3 years overall put together.

Once again,there was silence from his end for about 5 mins or so and he kept looking at his monitor and typing something in between.Meanwhile,he had taken out the blue coloured 221(g) form and ticked out details and ticked out he list of docs which the petitioner had to sent and again asked me

VO:Will you work in the office or at the client's site?
self:Initially, i would be in the office location but later on,depending upon the requirements,could move over to the site.

VO:where were you working? what were your activities?
self: mentioned about my work experience in detail
VO: OK....OK.... Thank you your interview is over.Please inform your petitioner about teh additional documents to be sent.He just pushed my certificates as well as the passport across and called up the next canddiate.He also marked in the blue form that i should submit the remaining docs thro' VFS service ONLY....

I would like to whether, i need to fill up a new DS156 Form as well as DS 157 Form or can i use the old forms? Do i need to submit all the original certificates or copies are sufficient?If anybody can advice,i would be really thankful for your kind help.My H1-B petition as been approved from 1st Oct onwards for 3 years.

Thanks & Best Regards,
Ashwini Pulugurta