Are you running Windows? If so, there are instructions on the forums that do not use Linux at all. I followed the instructions to the 'T' and got my LG Ally rooted in about 20 minutes.
If you're using a Mac, I won't be of much help :(
http://androidforums.com/all-things-root-ally/110156-how-root-lg-ally.html#post1044836
If you're using a Mac, I won't be of much help :(
http://androidforums.com/all-things-root-ally/110156-how-root-lg-ally.html#post1044836