First of all double check your soldering and make sure you haven't created a short circuit anywhere.
If everything is back in place then fully reassemble it before testing it.
I admire your tenacity in giving repairs a go but in the case of apple products its often worth just buying a 2nd hand replacement for £50 from cash generator et al.
Yeah, I'm starting to think I've crossed/short cicuited the soldering on the battery as now I'm getting the battery charging screen pop up when plugged into a pc.
I've done soldering before on pcb's as I'm a gas engineer, but the minute amount of solder required is that of a machine really, or at least a very high quality soldering iron.
I'm going to un-sweat the battery and try to re-seat it and go from there. I've got all the right components now, just need to get them altogether!
I will not be doing this again and would not have started if I knew how tough it was. I'm reasonably competent, but it's the job of a specialist really. It's ridiculous the amount of work required to change the battery and makes me despise Apple even more, just a shame the touch is such a great piece of kit.
Appreciate the reply.