Scribus 18.104.22.168 is in the VL repository under /extra. You may have to add that directory to your /etc/slapt-get/slapt-getrc file. As root add this line:
Then run gslapt, search for Scribus, and have gslapt install it.
Scribus 22.214.171.124 is not the latest version. The latest stable version is 126.96.36.199, which is not in our repositories. You can download a package for 188.8.131.52 from linuxpackages.net, but I don't know how it handles dependencies. Or you can compile 184.108.40.206 from source code.