In reply to samn01:
Hi Sam,
I've worked in the climbing industry for the past 3-4years so hopefully I can offer some advice.
The best bet for your girlfriend is to go into a local climbing wall and offer her help for free to work with climbing sessions(instructing) this shows that she's dedicated to it. While doing this get her to apply for the CWA and do her training, then the volunteering and working with groups she would have done at the climbing centre will compliment this and enable her to be more ready for the CWA assessment.
It also helps to show your face around the local climbing centres and get to know the staff, this will help greatly in getting to know the centre and letting her decide if the atmosphere is good for her.
Your best bet really would be to get her to get some more experience volunteering with groups and then apply again to climbing centres stating that she is in the process of becoming an instructor.
If you have any more queries, just send me an email through my profile and I'll be glad to help.
Wushu.