What are you talking about, you cant download on certain days??
Look, I'll walk you through the process, but I don't see what's so hard about this.
Go to the search page.
http://www.animemusicvideos.org/search/
Click Super Search.
At the song field type in "boobies"
Click search.
In the list of results that come up, note that the first video has NO written by it. This means that video is not available for download.
The 2nd video has DIRECT by it. This means there is a download link for that video.
Click on the 2nd video's title to go to its video info page.
Scroll down to the bottom of the page and you see there are 2 different versions of this video that you can download.
When you move your mouse over one of the links, if you have not donated to the site, a box will probably pop up asking you to donate. If you decide that you will not donate right now, look down at the bottom of this box where it says "proceed". Right-click on the word proceed and select Save Target As.
There you go, thats all there is to it.