No, everything's fine, no firewall & nat etc.Ports are free.Our connection is strong.

"Received incoming this session" is True.

"You won't see every shared file around" Is this for real? How can we solve this problem?
I'm not comparing but in ed2k you can find everyfile, nomatter where it is.Maybe the source's from Somalia & you'r Istanbul.It takes a little time but finally you can find it.

We want to know, if I share a file with Limewire, that means I share it to the whole Limewire (Gnutella) network, or not ???

If your files are being shared with LW, they're being shared on Gnutella. But it doesn't mean that every single person using a Gnutella client (at the time you're online) will be able to find your file in a search. Your searches can only take you so far, depending on the ultrapeers/peers you're connected to at the time & who they in turn are connected to...and so on. I tend to see mainly LW ultrapeers/peers & I assume it's the same for the different clients (ie BearShare would see more BS u/ps, Raza would see more Raza u/ps etc).

Clicking on the Connections tab will show you which ultrapeers you're connected to. You can change ultrapeers (right click > remove, a new ultrapeer will replace the removed one) & this will often change the results that you see in searches. Because the new u/p is connected to other new u/ps...you get the picture! So it might take some time for some users to see your files in a search...depending on who else they're connected to.

Did you try direct connecting & browsing each others' files? Sounds like your setup is all good & if you were able to see the files when browsing, I think you'll just have to trust that they're out there & available to the punters.

I can't really explain the workings of the network too well, someone like stief could explain it much better!!