Couple bits of advice...if you dont have it already purchase a shop manual. This site, I believe, has a printable Honda shop manual as well. It'll walk you through pretty much everything. It also gives you spec's which are nice to check.
keep track of EVERYTHING! Ziploc bags, containers, and a sharpie work great. You might want to number / label the rockers as they should go back in the original location to maintain wear patterns.
As you go through the tear down the reason for the seize will probably become apparent. Drop your oil pan and take a look. Are there shavings? You'll want to check your main and rod bearings. If the jugs refuse to come off then your pistons seized.
My suspicion though is that you probably had an oil system failure without knowing much about the bike. Inspect the hell out of your oil pump. Check all galleys for buildup or blocks. And tell us a little more about your bike (model, year, miles, condition etc)
