I'm in Aussie, might not be too helpful.
Yes, I have put 1.44's into MegaSTE's before. They work differently to a Falcon in that they need the right controller and jumper setup to work in HD. WD1772-02 or Ajax. Early models had DD and WD1772's, they moved off to the Ajax and HD. A jumper needs to be set on the mainboard and a Ajax installed if you have an older model. In saying that, I'm pretty sure I ran overclocked WD1772's on some machines and they ran OK.