Ubuntu Software Center

[Bill Stanley]

I want to install some software but I am finding that of the software in 
the Ubuntu Software center (USC) is horribly out of date.  For example, 
the Scribus desktop publishing program on USC is version 1.3.3.13svn. 
Since I use it on other computers, Scribus is now at version 1.4.1.  It 
is available on the Mint Software Repository and I would like to 
download it from there.  I assume that since Mint and Ubuntu are so 
close, there will be few problems using either software repository.  I 
have several questions.

1.  What is the address of the Ubuntu Software Repository repository?  I 
would like to add that to the Mint computer software sources.

2.  Does anybody know the address of the Mint Software Repository?  I 
would like to add that to the Ubuntu computer.

3.  What is the best way to add these repositories to the repository 
search list?


Bill Stanley