It doesn't really look like you can solder the pigtail anywhere else on the board. BTW what is the wifi adapter you are doing this mod too? I found that when doing this particular mod it was pretty easy with the Linksys WUSB54G V4 adapter. But, there are some problems with that adapter.
You don't plan on trying to solder the pigtail anywhere else on that same board do you? It looks like you got some pretty bad heat damage on the one you got there.