I downloaded the ISO images and burned the CDs.
An errror occurres by using Costuminstall between the Dialog and before 
the Packetinstallation : 

Traceback (innermost last):
  File "/usr/bin/anaconda", line 438, in ?
    intf.run(todo, test = test)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 336, in run
    self.icw.run ()
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 678, in run
    mainloop ()
  File "/usr/lib/python1.5/site-packages/gtk.py", line 2554, in mainloop
    _gtk.gtk_main()
  File "/usr/lib/python1.5/site-packages/gtk.py", line 125, in __call__
    ret = apply(self.func, a)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 428, in 
nextClicked
    self.setScreen (self.currentScreen, self.nextClicked)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 466, in 
setScreen
    new_screen = screen.getScreen ()
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/iw/package_gui.py", line 
427, in getScreen
    self.todo.getCompsList()
  File "/tmp/updates/todo.py", line 539, in getCompsList
    self.comps = self.method.readComps(self.hdList)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/image.py", line 16, in 
readComps
    return ComponentSet(self.tree + '/RedHat/base/comps', hdlist)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/comps.py", line 459, in 
__init__
    self.readCompsFile(file, self.packages, arch, matchAllLang)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/comps.py", line 428, in 
readCompsFile
    comp.addPackage(packages[l])
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/comps.py", line 101, in 
__getitem__
    return self.packages[item]
KeyError: MAKEDEV

Local variables in innermost frame:
self: <comps.HeaderListFromFile instance at 8535fd8>
item: MAKEDEV

ToDo object:
(itodo
ToDo
p1
(dp2
S'method'
p3
(iimage
CdromInstallMethod
p4
(dp5
S'progressWindow'
p6

<failed>