Index: openacs-4/packages/acs-admin/www/install/install.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/www/install/install.tcl,v
diff -u -N -r1.7 -r1.7.2.1
--- openacs-4/packages/acs-admin/www/install/install.tcl	8 Dec 2012 18:20:35 -0000	1.7
+++ openacs-4/packages/acs-admin/www/install/install.tcl	27 Aug 2013 11:44:44 -0000	1.7.2.1
@@ -32,12 +32,12 @@
     array unset version
     array set version $repository($package_key)
 
-    if { ![exists_and_not_null package_type] || [string equal $version(package.type) $package_type] } {
+    if { (![info exists package_type] || $package_type eq "") || [string equal $version(package.type) $package_type] } {
         set package_key $version(package.key)
             
         # If in upgrade mode, only add to list if it's an upgrade
         if { !$upgrade_p || $version(install_type) eq "upgrade" } {
-	    if {![exists_and_not_null version(maturity)]} {
+	    if {(![info exists version(maturity)] || $version(maturity) eq "")} {
 		set version(maturity) ""
 	    }
             set package([string toupper $version(package-name)]) \