Trinity Repository problems

Following the instructions for "For Precise [Ubuntu 12.04] LTS (v3.5.13.1)" from: http://www.trinitydesktop.org/wiki/bin/view/Documentation/UbuntuBinaryInsta…. I got these "Failed to fetch" messages with "apt-get update": ----------- From: http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-v3.5.13/ubuntu/d… source/Sources binary-amd64/Packages binary-i386/Packages Error: 404 Not Found From: http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-builddeps-v3.5.1… /source/Sources /binary-amd64/Packages /binary-i386/Packages Error: 404 Not Found ---------- I assume this is why I got so many "unmet dependencies" when I tried "apt-get install" Is there something wrong with the repository or is it something on my end...? ALSO: I am trying to install Trinity on Lubuntu 12.04. Lubuntu was a fresh install on a blank drive and has not been modified since the install. Will using Lubuntu instead of Ubuntu, be a problem? Keith