widders

Try moving the player data for you out of the server and logging in, if it works then the file is borked, you'll lose all your items and location but you'll be able to log in. file should be in <server_directory>/world/players/<username>.dat "world" may possibly be different if you renamed your world

For starters: http://forums.technicpack.net/index.php/topic,2797.0.html For seconds, it does say what is going on, the computer craft default block IDs aren't available. I'd guess you've either tried to dump the new install on top of an old one, or just tried to put computercraft into your old tekkit install

From what I have experienced, its due to chunk unloading/loading orders. There is basically no fix other than wait for Buildcraft to fix this. If you want a work around, don't use BC pipes as they're not very good in smp, buggy and that. Just use Red Power tubes instead for long distances.

Woah, chill guys. It'll all be alright, the meteor isn't real, its all just an optical illuuuussion. You need to worry about the alien mothership hiding behind meteor with the pig police who've come to steal all the hot scantily clad ladies. Just so you're ready for it, after the cut scene it asks for disc 2

The computer craft errors are because there are missing files in the computer craft folder, you can fix this by checking its extracted not in a .zip and that the path mentioned in the error exists, if it doesn't you should be able to just copy them in from a client's mod folder, iirc everything in that "lua" folder is ingame code and so the same regardless. This won't fix your problem though, just allow you to use computercraft. The buildcraft error is what is stopping your server running, try loading the world in single player and breaking the wood pipe and condensor then replace them, if that doesn't work, go hunt down all the condensors and break/replace them if you can, the offending blocks are likely within 16 chunks of your spawn since it's happening on loading.

I like your method of trying to get a devs attention. They really respond well to "SHIT IS BROKE WHY DON'T YOU FIX IT". I also love how you then continue to detail your problem whilst making snide remarks at the delay whilst the lead dev on the tekkit server was dealing with a death in the family. Anyway, if you look, in the very forum you posted, you will find both the issues and the resolution for the computercraft problems.