Gnutella Forums - hoe to get deleted fileS?

ok i had 4 episodes EDIT i downloaded from limewire and i used them to make videos and stuff using windows movie maker

the last day i worked on it was saturday and yesterday (monday} i opened my project (in windows movie maker) and there were like"x"'s evevrywhere and it said they cant find the episodes

so i looked on my limewire "movies" folder and i cant see them
i aksed the people who uses the computer and they said they didint delete the episodes

so out of the 4 episodes i had i can only see 1, all the other 3 episodes arent there in the folder (probably been deleted somehow)
i checked the recying bin and its not there either

can limewire delete things from my saved movie list, without asking me ?

is there a way to retrive deleted things from limewire?

also
what's THUMBS
eevrythime i look in my saved filelist
i se this thumbs thing what is it.?