Just copy and paste the wget command line in full into telnet, run it, and carefully follow the instructions.
I've just tried it (for the 1st time) and it works fine (@abu: I saw a number of kill errors which didn't look significant, but I couldn't cut and paste them here because the telnet session evaporates too soon.)
(If you've taken a settings backup (fairly) recently, you can cherry pick them as indicated in post #2)