Welcome to the forum Stef. Are you sure you've bought an actual TR7 or is it in fact a donor car for the car you should've bought? Sorry, that's a bit of a harsh joke but it's a question that most of us ask ourselves at some point of a big do-up. Many of us have gone thru the same thing so if you ever lack motivation we will know how to get you over the hump. The best thing we can hear is news of another wedge getting back on the road so if there is anything you need just ask.
Photos are the biggest aid in understanding what your problems are so have a look at this thread on how to post pictures of your baby.
http://www.forum.triumphtr7.com/topic.asp?TOPIC_ID=8388. Start a blog so you have something to look back on & see how much progress you've made.
Best of luck with your car.
Never say die. At least not while you're still breathing.