Macbook Air Won't Boot from USB Stick

Question

I'm having an issue all of the sudden with trying to restore Lion on my Air. I've been messing around with partitions and setting up triple boot (linx,windows,mac). I had it working but wanted to remove it all and try again. Ultimately if I can just fix the partitions that's all I'd need to do, but I couldn't figure out how to do that so I figured if I just re-installed Lion completey it would fix it.
The current status of my partitions looks like this:
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                  Apple_HFS Macintosh HD            90.4 GB    disk0s1
   2:                        EFI                         209.7 MB   disk0s2
   3:                  Apple_HFS TMP                     30.3 GB    disk0s3
I can't seem to merge disk0s1 and disk0s3 because the EFI partition is in the middle and can't be changed.
When I boot my air, and try to boot from a USB stick that has the Lion installer on it, I get a picture of a circle with a line through it. Kinda like a no smoking sign except no cigarette.
So I have a couple questions:
-Is there a way to fix the partitions?
-Did something I do to the partitions effect me being able to boot from another device?
-Is there anyway to do target disk mode with a macbook air? (if so can I do that erase the drive and install Lion on it?)
Thanks!

Answer 1

Restart your Mac while holding  Command+Option+R until you see a spinning globe appear along with a message about the recovery mode. If you have a Mac with a wireless keyboard you should wait a few seconds before pressing and holding the keys after you first see the light grey boot screen.
This will force your Mac to launch Internet Recovery. You’ll know that you are in Internet Recovery when you see a spinning globe and a meter running underneath it.
Lion Internet Recovery only works on WPA and WPA2 networks.