It is up to the server owners to decide what type of files (and how many of them) they will index and show in search results and browses. The policies may vary and also depend on the general loading situation of the servers. For these reasons it is very informative to browse your own library to see what really gets through to others in each network.
Note that if you have a large library and it gets capped in browsing people might still see the remaining files through searches and be able to download them.
If you are disconnected from a server, you cannot browse anybody's library on that server (your nick should show as offline on your hotlist), hence 0 files. If you try to do the browsing anyway, you should see a 'Waiting for response from server' message hanging on the Search window.
- tg
