Well, how can I find admin? Admin of ddtp.debian.net is not listed on https://wiki.debian.org/DebianNetDomains. Do you mean admin of Russian translation team? I also don't know who he is. If there is one, then he/she is (probably) not active now.
in the meantime, remember that if you position the curson in the "Fetch specific description" field, and hit "Enter" leaving it blank, you get a new description to translate.
Thanks! I fetched 30+ descriptions, so those, who don't know how to fetch a new "arbitrary" description, will have what to do now.