Hi Yamuna,
Firstly, you can give a sheet of paper having the followin detailsto the new joinees(you can add whatever you feel) asking them fill in
- People know me by
- DOB
- Sun Sign
- Philosophy et etc etc add on...
load these details to to a slide or flash(your wish) with their photographs
Since your firm is scattered across the nation there must be common/group e-mail id's at your firm.So,send the above slide/flash across the id's reaching inboxes
You can add an apt caption like "Get to know ur Fellows/colleagues/friends etc"
and also wish them good luck.:icon10: