--- a/sqlite.xml	Mon Sep 30 04:09:00 2013 -0400
+++ b/sqlite.xml	Mon Sep 30 04:09:36 2013 -0400
@@ -9,10 +9,10 @@
   <inputs>
     <repeat name="files" title="Table">
       <param name="file" type="data" format="tabular" label="File (tabular)"/>
-      <param name="header" type="boolean" truevalue="1" falsevalue="0" checked="False" label="Use the first row as column names. (If unchecked, use c1 c2 c3 ...)" />
+      <param name="header" type="boolean" truevalue="1" falsevalue="0" checked="False" label="Use the first row as column names (If unchecked, use c1 c2 c3 ...)" />
       <param name="index" type="text" size='20' value="" label="Index" />
     </repeat>
-    <param name="header" type="boolean" truevalue="1" falsevalue="0" checked="False" label="Print column names in the first row." />
+    <param name="header" type="boolean" truevalue="1" falsevalue="0" checked="False" label="Print column names in the first row" />
     <param name="sql" type="text" area="true" size="10x50" label="SQL">
       <sanitizer sanitize="False"/>
     </param>
@@ -22,6 +22,59 @@
     <data name="output_file" format="tabular" label="${tool.name} on ${on_string}"/>
   </outputs>
   <help>
-**What it does**
+
+**Tables**
+
+Select all table to be joined.
+
+----
+
+**Use the first line as column names**
+
+When the input file has column header::
+
+    id    name
+    101   John
+    102   Mary
+
+Check this box and use column names ('id' and 'name') to write queries:
+
+    SELECT * FROM t1 WHERE c2 = 'John';
+
+When the input file does not have column header::
+
+    101   John
+    102   Mary
+
+Uncheck this box and use c1, c2, c3, ... to write queries:
+
+    SELECT * FROM t1 WHERE name = 'John';
+
+----
+
+**Index**
+
+Comma-delimited list of column numbers.
+
+Example:
+
+    2,3
+
+This creates NOT a composite index BUT two different indices on column 2 and on column 3.
+
+----
+
+**Print column names in the first row**
+
+Example::
+
+    col1 col2 col3
+    aaaa bbbb cccc
+    aaaa dddd eeee
+
+----
+
+**SQL**
+
   </help>
 </tool>