[Haskell-cafe] Trying to install cabal

[Eric]

Dear all,

I have downloaded cabal and am trying to install it but have gotten the
following error message:

C:\cabal\cabal-install-0.5.1>runghc Setup configure
Configuring cabal-install-0.5.1...
Setup: At least the following dependencies are missing
    Cabal >=1.4&&<1.5, HTTP >=3000&&<3002, zlib >=0.4

I'm not sure from this message what packages I need to install to get
cabal up and running. Can anyone help?

Eric M.