Jonzy,
Thanks for the info. Actually, I have a printer at home and so I can instantly print my online booking once it is confirmed. I will purchase the ticket for my first leg online, but as firehazard suggested I will purchase subsequent legs when I arrive in each city - that will be quite convenient because I will already be at the bus station and all I need to do is make a brief stop at the ticket counter before exiting the station. I have no problem making that "detour" but I would prefer not to make a trip to the bus station just to purchase a ticket and so that is why I will purchase the first leg online.
Krish
