Denis,
Welcome to the forum and thanks for taking the time to download and try NALalyse.
I haven't seen the problem you describe before so please accept my apologies in advance if you've already try the suggestions! :
1. Do you have administrative rights to the Tree you're attempting to NALalyse?
2. During the NALalysis and subsequent import, do you receive any strange messages or warnings?
3. Have a look in the NALalyse log file (available via the Help menu) - this contains a trace of most things NALalyse does - any errors it encounters are usually shown in red.
4. Do any of the reports work - for instance, the Application attributes report?
5. Have you tried NALalysis just the one application? - do you get the same issue?
The answers to those questions will give me a starting point to identify the problem, but if you can have a look at
http://johnnyfoster.com/phpBB2/viewtopic.php?t=24 and, if possible, post me the NALalyse log file etc. as described in that topic that would help tremendously and from that information I should be able to identify and fix the problem.
thanks,
John