1) You don't need IE7 to run Poser 8. The library works just as well if you have IE 6 on your system. I hate to think anyone would go through the hassle of an unecessacary upgrade just because they think Poser 8 won't run without it.

2) You need way more than than 2 or even 4 gig of harddrive space because Poser stores a ton of stuff on your main harddrive. If you don't have a lot of space, it will not be stable.