I started with the instructions here:
I did the following with no problems:
Adding the WineHQ APT Repository:
First, open a terminal window (Applications->Accessories->Terminal). On Debian, you will need to open a root terminal. Then add the repository's key to your system's list of trusted APT keys by copy and pasting the following:
wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | sudo apt-key add -
Next, add the repository to your system's list of APT sources:
For Ubuntu Hardy (8.04):
sudo wget http://wine.budgetdedicated.com/apt/...t.d/hardy.list -O /etc/apt/sources.list.d/winehq.list
Then update APT's package information by running 'sudo apt-get update'.
I then clicked on the link to apt://wine and tried to download it from the Add/Remove option, when I do so, I get this with both methods.
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.
So I entered "sudo dpkg --configure -a" and entered my password when prompted, at which point it launched the Moblock control configuration in the terminal.
Hope this helps hehe.
Edit: seems anything I try to install now, will give me that same error.