I was able to get my aflush started by using the one with the last
source:

[root@whimsy backus]# cd amanda-2.5.1p3
[root@whimsy amanda-2.5.1p3]# cd server-src
[root@whimsy server-src]# ./amflush genepi
Scanning /home1/dumps/amanda...
  20070428150002: found Amanda directory.
  20070430190001: found Amanda directory.
  20070501190001: found Amanda directory.
  20070502190001: found Amanda directory.
  20070503190001: found Amanda directory.
Scanning /home2/dumps/amanda...
  20070428150002: found Amanda directory.
  20070430190001: found Amanda directory.
  20070501190001: found Amanda directory.
  20070502190001: found Amanda directory.
  20070503190001: found Amanda directory.

Multiple Amanda directories, please pick one by letter:
  A. 20070428150002
  B. 20070430190001
  C. 20070501190001
  D. 20070502190001
  E. 20070503190001
Select directories to flush [A..E]: [ALL] 

Today is: 20070505
Flushing dumps in 20070428150002, 20070430190001, 20070501190001, 
20070502190001, 20070503190001 using tape changer "chg-zd-mtx".
Expecting tape genepi053 or a new tape.  (The last dumps were to tape genepi052)
Are you sure you want to do this [yN]? y
Running in background, you can log off now.

Maybe the new amflush/autoflush is confused because I had dumps
from a previous version of amanda in my holding disks?

Steve
-- 
Steven J. Backus                        Computer Specialist
University of Utah                      E-Mail:  steven.backus AT utah DOT edu
Biomedical Informatics                  Alternate:  backus AT math.utah DOT edu
391 Chipeta Way -- Suite D150           Office:  801.587.9308
Salt Lake City, UT 84108-1266           http://www.math.utah.edu/~backus