x2. Thats the way they are designed to be mounted, though you could use some really hard curing glue (like the mentioned ca glue, or possibly gorilla glue, just be careful of the expansion).
Just find some screwheads like those (i believe he got those at home depot). Set the port in, mark some holes right on the outer edge of the port (on the MDF), then predrill some holes. That seems to be the easiest (and strongest) way to mount them.
I'm not the kind of person to pay an extra $20 for a port just to get a little flange that really isn't all that necessary. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif