Some Questions

Some Questions:

Is there any stats with regard to how many users are on FreeNet both 0.5 
and 0.7 ? and any way for there to be a users online function / files 
online with in it.

I am having a hard time getting a clear picture of the Protocol Break 
Down that FreeNet is using for net transportation, and does anyone have 
some idea on the fragmentation and re - transmission rates for packets 
and the sizes of the packets being resent.

Specifics I am looking for is a byte digram showing how many bytes for 
each step of the packet and then the data size.

I am trying to understand is the byte overhead level the packets have 
with in the freenet, in the transfer process.

I have a potential idea for a one way direction transfer needing only a 
handshake to initiate there is no ack needed and requires only a request 
for partial re-transmission if there is loss. It is able to withstand 
some packet loss but to be of value I need to have some idea on what the 
overheads are on the current system.