INSTALLATION
copy this in your MENU.PY :
>>>>

import SK_pathFinder_v01

from __future__ import division
import nuke
import os

SK_menu = nuke.menu('Nuke').addMenu('Superknot')
SK_menu.addCommand('SK_Path_Finder', 'SK_pathFinder_v01.path_panel()')
######################################

Limitations:

At the moment it doesn't work with sequences like those:
1)
NO >>> C:/test/test1/file_001.tiff
your sequences should use a '.' instead of an '_' >>>
YES >>> C:/test/test1/file.001.tiff

2)
NO >>> C:/test/test1/file.1.tiff >>
file.2.tiff >>
file.3.tiff >>
and so on...your sequences should have at least one 'zero' padding

YES >>> C:/test/test1/file.01.tiff >>
file.02.tiff >>
file.03.tiff >> and so on...

How to Use:

1 . Select only the nodes you want to change and then run the script.

2. Select the new root path of your project and click the 'Next' button.

3. Choose 'only_selected ' in the pulldown menù ,tick/untick the checkboxes of what you want to change, 'images', 'geo', 'cameras'
and then click the 'Do it' button'.

Or

1. Run the script.

2. Select the new root path of your project and click the 'Next' button.

3. Choose 'all_read_nodes' in the pulldown menù ,tick/untick the checkboxes of what you want to change, 'images', 'geo', 'cameras'

and then click the 'Do it' button'.

TESTED in Windows with Nuke 8 ,but it should also work with previous versions of Nuke, and in the other OS...

Please feel free to drop me a line for any question, bugs or suggestions...

Cheers

Salvatore