Glad to see you're taking an interest in walkthroughs.
As for making one for TP... I don't really know. It's gonna take me a long time to finish the one for ALttP in the first place, and my copy of TP is in some storage box in the basement. Suffice to say, I haven't played it in a long time. Sorry to disappoint you.
For your walkthrough, I recommend a few things:
1. For the absolute BEST results, I would do it on an emulator that can take audio and visual movies of the games you are playing, (be warned that emulators are somewhat illegal) However, to do this you would need a very large amount of space on your hard drive and a very, very good graphics card. I actually tried to do this on my computer, and I crashed it in the process, so be warned again.
2. If you're going to use a camcorder, make sure there isn't a whole lot of moving air in the room, it makes the audio sound like crap.
3. MAKE SURE YOU KNOW WHAT YOU ARE DOING. I'm not saying you don't, but I've seen way too many people who think they're so great until they get to a boss fight and get their a$$es whuped.
4. Lastly, go to
ZD's TP walkthroughs if you want to see some really good stuff. I personally think they are the best at this kind of thing.
Good luck