Is there any mod for this ?

[Brodey]

Hello, i just downloaded a theme of windows 7, i'm currently running vista. I would like to know if there is any mod for the little arrow in this picture, because when i click it it just expands, i would like it to do the normal thing that it does in windows 7 does anyone know how to do it ?, plzzz help heres link to Pic:

 

[biggles1000]

as in you want it to look like this? (image)
I've done a hunt around the web, and I'm afraid it doesn't look like it is possible. Apparently it's possible to change the windows 7 one back to vista, but not the other way round, sorry :/