man.. its 40 C degrees out there. i would even draw it for you
oh i know now. when you press the install, it asks you where do you want to install the game from, right? all you need to do is to mount any directory as CD rom in dosbox, then it wont look for floppy drive
so, for example, use command "mount d <any directory you wish> -t cdrom" and then install should run fine
and your dosbox config is allright btw=) so no drawing for you=P