I didn't mean to cause such a commotion! I specifically remember there being a topic on KIC, after the ride reopened from the 2005 part replacement. This topic showed two videos, where you could clearly see the difference between "old" Delirium and "new" Delirium.
Although these are not the same videos from that old KIC topic, because I don't have time to search for that topic, compare these two videos
Watch this video, taken and uploaded in 2008.
Then watch this entire video, it is shot from many different angles, but on some parts it shows it at it's highest swing from a similar angle to the first video I posted. This video is from 2003. It appears as though it is swinging much much higher.
http://www.youtube.com/watch?v=cmtaxIX2zjQ
EDIT: I think some people are slightly confused earlier in the topic. I meant the ride swung higher in 2003. Then in 2005, it had major downtime and a part replacement. When it reopened after the 2005 part replacement, it swung lower than it had in previous years. And my final point was that it currently swings the height it did after the 2005 part replacement