Newbie need help saving his Spyder...

I believe there is a process you must complete after changing the clutch.
One of the SMT guru's on here will be able to help you out :)

OK, a couple of questions for you:
 
1) Was the clutch you used a stock Toyota one, or any kind of aftermarket kit?
2) Was the flywheel machined?
3) Is the ECU throwing any trouble codes at all?
 
It sounds like your issue is either the clutch not being able to disengage fully (possible issue with aftermarket clutches being a fraction of a mm too thick/flywheel incorrectly surfaced), in order for it to pick a gear, or you have something wrong with the GSA itself. 
 
It's also worth noting that after reinstalling everything, rotating the wheels a few turns by hand will help line everything up for the electronics to do their work (its part of the 'Parts Exchange' process to do this)
 
I don't want to go all techo right now, but if you can answer those three questions, it'll help :)
 
Ta

The general rule of thumb is that the 'Parts Exchange' process needs to be carried out, using Toyotas TIS (Techstream) software and a compatible OBD2 reader.
 
Without this, you can run into a number of issues including clutch stroke not being measured accurately, the shift position/stroke sensors not being calibrated correctly, etc.
 
The first thing I would do if I were you, would be to get ahold of an OBD2 reader and TIS software and carry out the Parts Exchange process.  I assume you're in/near Sydney?  If so, I think aussiespyder might have the aforementioned bits to do that for you (im in SA, you see, haha)
 
If that doesn't work, then it could be a case of pulling the box off again and going over every possible issue - starting with the flywheel thickness.
 
EDIT:  Friction point relearn will be irrelevant until the above process is finished.