I was able to find
this. I'm pretty sure it's the one you're looking for. It lets you download an mct file but I have no idea how to install it. Maybe someone else on the forum knows how to do that. The mct file appears to be just an archive of some sort ... I can extract the contents but I'm not really sure where they go.
I too found this great Pepsi theme pack but lost it when I reinstalled MSN Mess 7.5. I found it again when I opened a conversation window and clicked the packs popup. That's actually where I found it originally.
MSNrobot
