Hallo to everyone.

I am taking care of the italian translation, and I am quite concerned about translation versioning.
At the moment, we dispose of 4.5.0 translation, 4.5.2 translation and 4.6rc in progress translation.
Translation project only include 4.5.0 and cvs translations. I wasn't able to create a 4.5.2 translation project.
So, how am I supposed to handle translation files? shall I put 4.5.2 translation in 4.5.0 space or what else? if else, what should I do with 4.5.2 translation file? (it is slightly different from 4.5.0 and include many corrections).