It's sad to see that no one has spoken up since August, but then again, I don't frequently visit these forums.
Here's my advice for enjoying the game (starting with what you asked for):
1. If you place a building in the wrong spot, or if you want to destroy womething without making it explode (like a crawler or energy extractor), use the "reclaim" function - it'll deal three damage and store energy for your coming turn.
2. Pay attention to the number at the top of your screen in the atomic orbitals symbol: that's the amount of energy you'll get next turn to do stuff. At any time while not selecting an building/weapon to launch, you can press the skip tab at the top of the screen to allocate thist urn's energy for next turn (helpful if you want to launch a 7-energy hub and a 7-energy energy extractor all at once, for instance).
3. Turn order each turn starts with a different player each turn (by rotation), but you'll notice that hwne you run out of energy, your opponents may still have some, and can attack you with impunity until theirs runs out. Sometimes it's good to launch low-cost things for a bit to elt the enemy use up their energy, and hit them while they can't respond!
4. If you aren't sure of your shot, launch a bridge module - it'll leave a crater at the exact spot it landed, marking wher eyou would have hit with your original launch (for only 1 energy cost).
5. Always establish good scouting. Towers are actually better at reconnaisance if placed on a hill than balloons, and they're cheaper too.
6. Occasionally, you can launch a long-trailed building to block calking cralwers. Towers or AAs are great for this. Some players also create a sort of corral and launch their own crawlers against a building trail because they won't pass until the trail is removed (and crawlers don't detonate against friendly units). It can be pretty effective, if you're given time to screw around (which you never should have).
7. Try to establish 2+ energy extractors per energy spot (even the smallest ones). You'd be surprised how much energy you can get out of them (and from adjacent squares too!). Even if you miss, an energy buildign will still generate an extra 1 energy.
8. Getting the sthots just right to take out a fortified position can be tricky - target the downstream hub and everythign else will crumble.
Hope those tips helped.
