Hmmmm I'll answer the ones I know.

1. 2/4 meaning --- 2 is the number of complete file uploads. 4 is the partial number of times that file was uploaded --- They just needed a portion of yours and got the rest from other hosts.

2. a. Can be caused for many reasons to numerous for me to explain. like loss of internet connection by you or the host trying to u/l.

b. not lost, but it will no longer be identified to the other hosts as the original file, and they will have to do another search to find it again, and it will be listed with the new ID tag. It will also start from 0% since it doesn't recognize the original tag, unless there is a host with the original file and tag. Also when you do a file refresh after you add a file it will post the same thing -- file could not be found -- until the refresh is done. Then the host will be able to upload again.

c. not sure, but my guess is for that session or a set time period by LW program. I have seen the same IP u/l from me on different days, whether it was the same host or not I don't know.

d. yes

e. yes --- think of it like this. Why would you want to d/l from yourself.