First, I assume you have let these two computer get into the Overnet or the eMule, then I can suggest the way to solve your problem.
Second, you say that file you wanted to download is being the status of "Looking...", so the first question is, "Is there any source? And are you in there?"
If no, please let your friend to add you into his friend list, and "View the Directories", and see what the files you just shared.
(Remember!!! Set the option "show files to everyone" or show to your friend)
If any, let's make sure that there just you and your firend know the ed2k's link, and you shouldn't download anything right now, that's all.
But I am still a newbie in Overnet, so if I have said anything wrong, please tell me, thx a lot