I would really love to, and I promised myself that I will as soon as I make myself some time.
Unfortunately there still much I would love to test and learn in Pharo before getting myself dirty. Mariano's blog about VM and Morphic are some of my pending accounts. So maybe after the winter holidays (Argentina's winter) if I have some time, i will start doing some more things in Pharo.
Collaborating a little bit on PBE Spanish translation thou. Trying to give my 2 cents back to the community.
Back to the problem: I checked in the MetacelloRepository for OSProcess, and found out that latest version is 4.4.2. So I downloaded the ConfigurationOfMagma from MetacelloRepository for Pharo 1.2...but then I found out that I dont understand anything about Metacello or how it works...so even if I tried to found a reference for OSProcess 4.4.0, i was not able to find it.
Metacello added to my pending accounts list. Geez... every time it gets larger and larger.