I believe that most of WTL 2007 just installs and works with CrossOver at this time. There were some issues that required 'scary' workarounds and there may still be a few bugs... so, I'll pull out my crayons and try to make this easy...
Load CrossOver onto your doc station so that the title bar at the top of your screen says 'CrossOver'
To the left of 'CrossOver' on the title bar it will say 'Configure'
Highlight 'Configure' and choose 'Install Software...'
When the CrossOver install wizard starts a window will open, one of the buttons at the bottom should say 'Install Unsupported Software...'
Click the 'Unsupported Software' Button
The next screen will be a warning about unsupported software, click 'Continue'
at 'Install into...' choose 'New bottle' and then click 'Create Bottle and Continue'
Name your bottle something memorable and then verify it is set to bottle type 'winXP'
Click 'Create', this will start the bottle creation process
Once the bottle has been created you will be brought to the window that will access the Watch Tower Library Installer, for this step, you will need to have the Watch Tower Library disk in the drive (if you have not already put it there, when you insert it the CrossOver 'autorun' feature will start in addition to the install process you have already started, just quite the 'autorun' feature)
Select 'Choose installer File...' and click 'Install'
This will open a 'Finder' browser that will let you point CrossOver at the executable installer file.
Highlight the Watch Tower Library disk and then choose the installer file from that disk
Click 'use this installer' and CrossOver will load the installer.
Now, you are at the Watch Tower Library Installer, it should walk you through the rest of the installation process.
If you have any further questions, please send us an email at info@codeweavers.com or open a support ticket and we will be glad to help.
Cheers!