Using Regedit to Modify Taskbar Appearance

Ref. Vista Home Premium, 32 bit.

Hi,

I am thinking of changing the appearance of the taskbar icons (using Regedit).

Is is possible to have a Windows 7 like appearance. but retaining the text?

The common values for MInWidth appear to be - 255, -254, -288.

Do these values mean that 254 give the smallest icons, and 285 the largest?

What does, say, 255 mean, why is there a minus sign?

Why is there no MinHeight value?

I have no MinWidth value in the registry, as yet, so how are the dimensions of the taskbar icons decided?

Is there an online tutorial that explains the numbers?

Thanks