Hi there.
I took the latest ivan CVS, got it to compile with gcc 4.5, converted it into a Git repository, added some of the nukes' changes for 64 bits, taken from
http://www.attnam.com/downloads.php?id=7
The resulting stuff is available here:
http://gitorious.org/ivan
... and only then I noticed that ivan isn't half as dead as I thought, there are offshoots and variants and stuff. Perhaps I'll get around to merging them into mine.