Cannot find 'directory access' in utilities on macbook

Hi,

I received my macbook this afternoon (horay!) and am currently trying to network my old dell with it so I can transfer my files. However, I cannot find the 'directory access' which is supposed to be in my utilities file- I have 'directory utility' but this has nowhere for me to enter the name of my windows workgroup (as per networking guide says I should) and thus cannot enter it into finder>go>connect to server!! Aggg

Any help, even if just to point out my stupidity would be greatly appreciated, as my google searches have been fruitless.

Thanks!
Harriet