Networking :: Install Opera

hey
i would like to install Opera 8.52, because i have tested this version enough under windows, and its my favorite Opera besides 6.05 =)
ok, i'm on official site, linux download, what version i need to download:
Debian Unstable (Sid)
Debian Testing (Etch)
Debian 3.1 (Sarge)
Debian 3.0 (Woody)
Debian 2.2 (Potato)
i remember, that i need to active one line and deactive another to change my linux from oldstable to testing (what was the path to this file?)... so after this, i do apt-get update, and download Debian Testing Opera?
i know how to use gunzip, tar and have gcc.
looks like it is deb file... is it compatible with DSL?
anyone tried Opera 8.52 Testing DEB?

and bonus question: UCI files are installed always as temporary files?
because after reboot (i dont use frugal, i have complete hd installation), Opera from myDSL UCI no exist anymore...

original here.