there's sometime a problem with a path on diffrient drives on windows
when you are at c:something and want to go d:\games you need to type D: and then cd d:\games because cd on windows cannot change the drive (cd is changedirectory command). If you want to go from C:\users\user to c:\ you have to type cd \ which moves you to master folder of drive so also applies from D:\something to d:\ and if you want to go one folder up you type cd .. and if you want open folder named xyz which is in folder you are you type cd xyz.
So i suggest to check the paths first, and then go to place where the bash.py is then type full path to python exe in quotes and bash.py at the end (this is isngle comand)
C:\users\user is definetly not the place from where you need to run bash.py. I believe its a directory for user "user" on your windows instalation. so when you start command prompt without parameters it's normal that it points you here.
so you have to find proper paths for your system (eg. you installed python on d: ? where you installed oblivion+WB?)
so now I'll give you two clues
1) default path for python to install differs between version so check up if you need python25 or python26
2) if you have problems with changing current paths on the cmd console you may download "cmd.exe here powertoy" from microsoft, then you need to rightclick directory you wanna be in and click new option "cmd.exe here" and bang! you started command prompt from the place you want