So that guy that cracked it on Twitter used my friend's version of the transcript, whereas using Matt's returns this from the same site he used:
sitory forwardslash assetninetyeight forwardslash imgzerofourfiue
Which must be SITORY/ASSET98/IMG045
Slightly more tangible, but
http://www.oddworld.com/soulstorm/asset98/img045
Still no dice
E: I think the bit holding us back is "sitory" at the start. I don't think that's right