I have approximately 30,000 replays from 2005 to 2011. If I search for any wormer in my database I am extremely likely to find them.
I have searched my replay folders and found only a VIPer who played around 2004 and 2005 in the clans bfw & UpP - so that's not you.
I did not find any ViPeRR or SK@@RJ.
Also quite interestingly. I had someone do a bit of research for me.
Neither ViPeRR, nor SK@@RJ have ever been seen in Wormnet ever. So either you never logged into wormnet at all as these identities or you logged in using different usernames.
I would be interested to find out which it is.