Re: Attachment size limitation?
I think there's a timeout value in php.ini too. I don't recall exactly what it's called but that could be the issue. Essentially the upload script is timing out before the file has a chance to upload.
I would say as a sort of advisory note, if you're trying to upload files that are hundreds of megabytes big then I think you'd be better off using a different service/method. Tiki is meant for files that are perhaps tens of megabytes big not several hundred MB like CD/DVD ISO's and such.