I have tried installing ISPConfig twice deleting the install directory as per your directions on every install with no luck in completeing the process. This is what I have done.
Environment: VMWare 5.0, Fedora 3, P4 2.8GHz, 1024mb DDR
Installation process: I used ISP Server Setup with Fedora Core 3
Note: Fresh install and no other applications installed other than the How-To pages has instructed.
configure: error: The installed zlib version may contain a security bug. Please upgrade to 1.2.2 or later: http://www.zlib.net. You can omit this check with --disable-zlib-vcheck but DO NOT REPORT any stability issues then!
make: *** No targets specified and no makefile found. Stop.
make: *** No rule to make target `install'. Stop.
cp: cannot create regular file `/home/admispconfig/ispconfig/tools/clamav/COPYING': No such file or directory
cp: cannot create regular file `/home/admispconfig/ispconfig/tools/clamav/etc/clamav.conf': No such file or directory
cp: cannot create regular file `/home/admispconfig/ispconfig/tools/clamav/etc/freshclam.conf': No such file or directory
./compile: line 124: cd: /home/admispconfig/ispconfig/tools/clamav/etc/: No such file or directory
./compile: line 126: cd: /home/admispconfig/ispconfig/tools/: No such file or directory
tar: clamav: Cannot stat: No such file or directory
tar: Error exit delayed from previous errors
ERROR: Could not create clamav.tar.gz