driver as part of it make up- so it may well be this item that is detecting a scanner- but it will only off basic facilities and none of the enhanced ones included in the Epson package.
So the question is does the software for the v3000 run on Win7?
An email to Epson scanner support should answer that.
Older versions of Windows have the 'Program compatibility Wizard-[ start/programs/accessories] this enables say, XP to behave as '98 so that older software would run.
Does '7' have this too or has it progressed a tad too far?