Cross threaded/stripped bottom bracket I installed a new sealed bearing in my bottom bracket. Unfortunately after tightening it most of the way, it jammed and I realised I'd cross threaded it.

I then removed it and reinstalled it. It tightened up no problems and seems secure now. I went for a short ride and it appears to be working fine.

I am going to use this bike as a fixie build and am planning to put a fair amount of effort and expense into the frame, so I don't want to continue with this bike if I've damaged the bottom bracket significantly. This link indicates that I may have done irrepairable damage.

So my questions:


Given that it now appears to be fine, how can I tell if I have damaged the bottom bracket? 
If it is damaged, are there methods to repair it, or should I discard the bike and get another donor bike? I don't want to put a lot of work into this frame and then in 12 months discover that it's not usable long term
You probably didn't remove material when you cross-threaded the bottom bracket shell in.
If it's a steel frame, you can cut new (correct) threads with the correct taps. The taps are quite expensive, (they have to line up, and one is upside down, find a shop or local framebuilder who has one.

Baring that you should chase the threads : grab old steel bb shells, cut two triangular grooves in them. You want a perpendicular cut on the trailing side of the thread. (Ask the internet for images of a thread chaser). Fill the grooves with thick grease, thread them in and out wipe it down and you're done.

You can wrap some teflon tape around the threads to make them tighter as well.

Either way you probably shouldn't "invest" money on this frame anymore, maintain it and once you've ridden it through, turn it into a shop stool.