diff --git a/installing-python.html b/installing-python.html
index aefcc43..f01eedc 100644
--- a/installing-python.html
+++ b/installing-python.html
@@ -31,8 +31,8 @@ body{counter-reset:h1 0}
 <p><img src=i/win-install-3a-disk-usage.png width=499 height=432 alt='[Python installer: disk space requirements]'>
 <p><img src=i/win-install-3b-test-suite.png width=499 height=432 alt='[Python installer: removing Test Suite option will save 7908KB on your hard drive]'>
 <p><img src=i/win-install-4-copying.png width=499 height=432 alt='[Python installer: progress meter]'>
-<p><img src=i/win-install-5-finish.png width=499 height=432 alt='[Python installer: installation completed]'>
-<p><img src=i/win-interactive-shell.png width=677 height=715 alt='[Python Shell, a graphical interactive shell for Python]'>
+<p><img src=i/win-install-5-finish.png width=499 height=432 alt='[Python installer: installation completed. Special Windows thanks to Mark Hammond, without whose years of freely shared Windows expertise, Python for Windows would still be Python for DOS.]'>
+<p><img src=i/win-interactive-shell.png width=677 height=715 alt='[Windows Python Shell, a graphical interactive shell for Python]'>
 
 <h2 id=macosx>Installing on Mac OS X</h2>
 
@@ -45,23 +45,23 @@ body{counter-reset:h1 0}
 <p><img src=i/mac-install-6-custom-install.png width=622 height=442 alt='[Python installer: custom install screen]'>
 <p><img src=i/mac-install-7-admin-password.png width=622 height=457 alt='[Python installer: dialog to enter administrative password]'>
 <p><img src=i/mac-install-8-progress.png width=622 height=442 alt='[Python installer: progress meter]'>
-<p><img src=i/mac-install-9-succeeded.png width=622 height=442 alt='[Python installer: installation succeeded]'>
+<p><img src=i/mac-install-9-succeeded.png width=622 height=442 alt='[Python installer: install succeeded]'>
 <p><img src=i/mac-install-10-application-folder.png width=488 height=482 alt='[contents of /Applications/Python 3.1/ folder]'>
-<p><img src=i/mac-interactive-shell.png width=522 height=538 alt='[Python Shell, a graphical interactive shell for Python]'>
+<p><img src=i/mac-interactive-shell.png width=522 height=538 alt='[Mac Python Shell, a graphical interactive shell for Python]'>
 <p><img src=i/mac-pythonlauncher.png width=432 height=536 alt='[Python Launcher preferences window]'>
 
 <h2 id=ubuntu>Installing on Ubuntu Linux</h2>
 
-<p><img src=i/ubu-install-0-add-remove-programs.png>
-<p><img src=i/ubu-install-1-all-open-source-applications.png>
-<p><img src=i/ubu-install-2-search-python-3.png>
-<p><img src=i/ubu-install-3-select-python-3.png>
-<p><img src=i/ubu-install-4-select-idle.png>
-<p><img src=i/ubu-install-5-apply-changes.png>
-<p><img src=i/ubu-install-6-download-progress.png>
-<p><img src=i/ubu-install-7-install-progress.png>
-<p><img src=i/ubu-install-8-success.png>
-<p><img src=i/ubu-interactive-shell.png>
+<p><img src=i/ubu-install-0-add-remove-programs.png width=920 height=473 alt='[Add/Remove: Canonical-maintained applications]'>
+<p><img src=i/ubu-install-1-all-open-source-applications.png width=920 height=473 alt='[Add/Remove: all open source applications]'>
+<p><img src=i/ubu-install-2-search-python-3.png width=920 height=473 alt='[Add/Remove: search for Python 3]'>
+<p><img src=i/ubu-install-3-select-python-3.png width=920 height=473 alt='[Add/Remove: select Python 3.0 package]'>
+<p><img src=i/ubu-install-4-select-idle.png width=920 height=473 alt='[Add/Remove: select IDLE for Python 3.0 package]'>
+<p><img src=i/ubu-install-5-apply-changes.png width=635 height=364 alt='[Add/Remove: apply changes]'>
+<p><img src=i/ubu-install-6-download-progress.png width=287 height=211 alt='[Add/Remove: download progress meter]'>
+<p><img src=i/ubu-install-7-install-progress.png width=486 height=258 alt='[Add/Remove: installation progress meter]'>
+<p><img src=i/ubu-install-8-success.png width=591 height=296 alt='[Add/Remove: new applications have been installed]'>
+<p><img src=i/ubu-interactive-shell.png width=679 height=687 alt='[Linux Python Shell, a graphical interactive shell for Python]'>
 
 
 <h2 id=other>Installing on Other Platforms</h2>