1.) The key to getting downloads on WinMX is that you share lots of files in return for downloads.
Most people (me included) will cancel and ban anyone trying to download who isn't sharing files. People will often jump you to the top of their queue if they are currently downloading from you (all this can be automated with
MXMonitor).
2.) When searching, search for Japanese
l and
رTB as well as the English word
Ayumi. Use the filesize to check if you already have an all-japanese-named file.
3.) Right-click a user who has any Ayu file and choose Browse, instead of relying on the Search window to find files of interest.
4.) Stay connected for days at a time and make sure "Auto find sources every 30 mins" is enabled.
If you set fifty 60mb downloads going, after a day or two, you'll have half a dozen successfully downloaded/downloading. After a week downloads will be constant, averaging approx 1.2Gb/day on a standard 512k ADSL link.
It took about 10 such one-week connections for me to get a fairly complete collection - 23Gb - of Ayu videos.
What's great about WinMX is that unlike Kazaa (a) there's no ads/spyware and (b) it rewards fairness - the more Ayu you share, the more you will get.
Oh, and yes, it does resume partly-downloaded files jiayulam.