I'll host it on my website for any other unfortunate souls (like me) who couldn't fix the error. Here's a direct link...
http://www.angelfire.com/me3/AOrionJ/stuff/Inception_Exe_Fix.zip
It probably doesn't have too terribly good of download speed. Zipped the file to save space on my meager twenty megabytes of space. All you should have to do is extract the file to the Inception Act 1 or Act 2 directory. That's all I did, in any case. It works for both of them (on Windows XP) for me.
Happy gaming!
Edit: Of course, Angelfire doesn't like direct linking.. So you'll have to copy the URL into your toolbar yourself. Damn you, Angelfire.
