I do apologize for the inconvenience of this message but i do wish to know a few things.

1. Are gates not fully implemented? if so I might me miss using them, I tried to put a redstone engine next to it and it wasn't powered.
2. Are conductive pipes removed or being added?
3. Are the engines other then redstone not fully implemented?

As of 7.99.3:

1. Gates aren't fully implimented but are there and can be used but are missing a fair few actions/triggers
2. KINESIS pipes are not implimented and will be reimplimented in a future alpha
3. All the engines are implimented, they have a few issues but work for the most part

please use our discord ( discord.gg/QZAtRuM ) or irc channel (#buildcraft) for questions like this in the future