Yuriy

Post a proper bug report in the proper forum (the bug forum). Also, prior to that, delete the installation folder (Technic or Tekkit) that's giving you problems and try re-installing from scratch. Don't forget to use the launcher logs in your bug report as they have more information. Also, pastebin.

Guess that depends on how Pahimar codes EE2 and EE3, doesn't it? I think Pahimar would react favorably to being asked such questions. On second hand, probably not. In short, wait and see.

You have backups... You don't have to play the newly-generated map, it was for diagnosing whether it just had trouble loading your map. Either way, yeah, try loading from a backup and find out where, when, and how the corruption occurred so it doesn't happen again.

Some tools allow you to fix or regenerate corrupt chunks but may have trouble working with mods. I'd tried, in vain, to fix map corruption within Tekkit twice. Although it may be possible, I'd often rather start over than spend hours trying to fix it. Nevertheless, you didn't answer my question...terrible form answering a question with a question without at least providing for me an answer.

Map corruption? Have you tried with a fresh or non-generated map?

Download Tekkit Server. Port forward port 25565 from your router to your hosting computer. Run server. Stop server ("stop" command). Go into server properties file and enable whitelisting. Modify white list to include people. Start and play.

Help us help you. In other words, provide more information because we can't read your mind.

http://forums.technicpack.net/threads/small-scale-recruitment-thread.22584/

"Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0" Just pointing out that if you read the errors many of them will give you a clue as to what you should search for. The part in bold is the topic of many threads and commonly associated with not running Java 7 (or MC not loading into Java 7 if both 6 and 7 are installed). Just trying to help you learn to troubleshoot some basic errors. Also, if you can't troubleshoot something and it's a basic install or bug, I'm also trying to explain that you should use the bug forum in the proper bug reporting format because that's where bug reports are supposed to go. However, thanks for using code tags; pastebin is also nice because it doesn't make your thread too long and people can see the error report with line numbers. Again, that's for your future reference.

http://forums.technicpack.net/threads/do-not-ask-others-to-find-you-a-tekkit-server.22029/

http://www.oracle.com/technetwork/java/javase/downloads/jre7u7-downloads-1836441.html Get the x64 for whatever OS you run. Also, you're in the wrong section with the wrong format. If you had searched Unsupported major.minor version bug using the forum search, you'd have found it's a common problem and you'd need to get Java 7. For the record, currently (I believe), you need Java 7 for Advanced Machines, Nether Ores, and at least one other mod whose name I've forgotten.

You can't take the trip wires out if you're launching it on a 1.2.5 server. Whatever id is assigned to tripwires in 1.2.5 will replace trip wires...if no id is assigned, they'll turn to air. If the map is made around trip wires, I'd probably just host a regular 1.3 server (or a bukkit variant of a 1.3 server).