Trast Industries Homepage
If you are looking for a copy of the GBA/DS ROM hacking documentation then you can find the current version on GBAtemp. A mirror of the PDF is available here, though if you can use filetrip then please do. The older file hosting account that this page redirected to saw too many false positives and got disabled, if there are any files you want from it then contact me on GBAtemp or something. Most of the interesting ones should have been uploaded elsewhere though.