Hi there! Correlating skins is fairly straightforward -- Phaenoh has pre-made templates already here. Grab the Phaenoh_EugenicSuperSkin_Alien-TextRef.rar file in the comment under the "Supernaturals" heading, then check out the instructions here. I'm not sure how much experience you've had with SimPe, but if this is your first project, take it slowly and step by step. Let me know if you run into any difficulty!