My video: Apple iBook G3 Clamshell HD swap quick and dirty in 8:17 min

There is a much more easy way to put a new harddisk in your iBook Clamshell - only 19 screws.
The trick is to remove the screws in the region where the HD is located and bend the EMI shield in order to fish the HD out. Do not disconnect the IDE and speaker cable to the logicboard