Yes Hits means how many people have found your particular files in their searches. Library window, select one of your shared folders & look at the columns to the right to find Hits column. Uploads column will show 1. complete uplds/partial uplds which may be shared with other users to the person(s) that were/are uplding from you.

I'm not sure because I have uplds & downlds set to autoclear, but I doubt the monitor window will show partial uplds when the person might have got the last bit of the file from someone else. And who is uplding from you at any time can change very quickly so you might not notice that someone uplded parts of a file from you.

sharing = people who are sharing your file? I'm not sure what you mean here. But if it's a partial upld I believe it can mean 2 things. 1. That you helped the person get parts of the same file some other people are also sharing, & 2. Someone only uplded a part of a file from you without assistance from other sharers but didn't get the whole file yet. If I'm incorrect about this then I'd be happy to be set straight.