No.
Best thing is to re-search the file. If it shows up then the person is online. Follow what I suggested above. Can also use the Advanced search of Get MOre Results by right-clicking the search tab & choosing that option.

BTW some gnutella users such as Shareaza users will not always have the gnutella network turned on. They can be difficult to connect to anyway because they often have multiple networks working at same time which take up all their bandwidth. I've also noticed users, particularly ShareAza users having dynamic ip's & they don't return to the one they had when I first started downlding the file for some weeks.