try using {} for the var before a dot

lib/release.tmpl

@@ -10,11 +10,11 @@
      ELSE;
        longversion = smversion|replace('a','%20Alpha%20')|replace('b','%20Beta%20')|replace('rc','%20RC%20');
        IF platform == "win";
-         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/win32/$locale/SeaMonkey%20Setup%20$longversion.exe";
+         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/win32/$locale/SeaMonkey%20Setup%20${longversion}.exe";
        ELSIF platform == "osx";
-         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/mac/$locale/SeaMonkey%20$longversion.dmg";
+         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/mac/$locale/SeaMonkey%20${longversion}.dmg";
        ELSIF platform == "linux";
-         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/linux-i686/en-US/seamonkey-$version.tar.bz2";
+         "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/linux-i686/en-US/seamonkey-${smversion}.tar.bz2";
        ELSE;
          "ftp://ftp.mozillla.org/pub/mozilla.org/seamonkey/releases/$smversion/$platform/$locale/";
        END;

src/releases/2.0.1.en.html

@@ -245,7 +245,7 @@
   </p>
 
   <ul>
-    <li id="tarball"><a href="[% INCLUDE download_file path="source/seamonkey-$smversion.source.tar.bz2" %]">Source
+    <li id="tarball"><a href="[% INCLUDE download_file path="source/seamonkey-${smversion}.source.tar.bz2" %]">Source
       Code Tarball</a> (bzip, 57 MB) - note that it doesn't unpack a
       subdirectory itself, so create a directory to unpack it in.
     </li>
@@ -321,7 +321,7 @@
   </tbody>
 </table>
 <p>Language packs:
-  <a href="[% INCLUDE download_file path="langpack/seamonkey-$smversion.tr.langpack.xpi" %]">Turkish</a>
+  <a href="[% INCLUDE download_file path="langpack/seamonkey-${smversion}.tr.langpack.xpi" %]">Turkish</a>
 </p>
 </div>