Just in case you zapped your internal memory, here's a copy of the drivers that pops up when you first hook up your phone.
http://dl.dropbox.com/u/18067054/LG Esteem.zip
If you have trouble unzipping, use 7-Zip, which is what I used to compress.
http://dl.dropbox.com/u/18067054/LG Esteem.zip
If you have trouble unzipping, use 7-Zip, which is what I used to compress.