The Usage of alcc is very easy:
Just open a console.
Change to the directory where the file for which you want to create an eD2k-Link is located. (For sure you can specify the absolute path of the file if you are somewhere else on your Box.)
Type alcc <Filename>.
Get the Link.
You can now copy this link, give it to a friend, save it to a textfile, post it to some forum or whatever else you wanted to do with it.
You can create more than one link with a single command. - You have to separate the filenames with a space from each other: alcc <filename1> <filename2> <filename3>