svn create trunk and branches

I used Visual SVN Manager to create a repository, but I didn't create /trunk /branches and /ta开发者_C百科gs at first. Now, I NEED to add these since the project has grown up ==> branching and merging is essential! What is the best way to do so ?

Assuming there isn't a name clash, create trunk, branches and tags directories, move your current source code into trunk, advise everyone to switch their working copies to trunk, and you're good to go.