If you modify your Tekkit, you are automatically building a custom modpack, which is not supported as a Tekkit installation. Custom modpacks are discussed on Platform Pagoda.
It is laudable that you held back on spilling the log. Please use Pastebin or a similar web service to post logs, and all will be fine.
So what you do now is upload your log to Pastebin and head over to Platform Pagoda. Or self-report your post and kindly ask a moderator to move it there.