I've been using aiContact safe for long time in J 1.5, but, since it isn't available for 1.6, I decided to try Contact Enchanced - I've purchased the full package a few days ago - installs smoothly, and in no-time all was up and running. I had some questions that I have posted first by email support, and than also at the forum, and all my questions were answered right away. There was a feature available in J1.5 version of CE that I've needed, but not yet implemented in the J1.6 version. Well, I've asked nicely, and over the weekend the feature was implemented!
So, thank's a lot for all the help and keep up the good work - extension is not free, but it's also not expensive, and is well worth the money paid for it.