install from downloaded package

view story

http://askubuntu.com – I want to install MySql 5.1 on ubuntu 12.04 64-bit. The reason for MySql 5.1 is that I want to use it with SQLAlchemy (python) which does not support MySql 5.5. If I try to search repository there is only MySql 5.5. I tried sudo apt-get install mysql-server=5.1.58 but E: Version ‘5.1.66’ for ‘mysql-server’ was not found I found package on this page https://launchpad.net/ubuntu/+source/mysql-5.1/5.1.66-0ubuntu0.11.10.2 and downloaded it. I have a problem with installing it. Is there an option for apt-get to read from the directory? (HowTos)