Carsten, 

Sorry about multiple drops. This post *should* contain the patch.

Summary: 

When I trigger a org-capture, with the cursor positioned on a line in
the agenda buffer, I want the link to the agenda entry to be available
as an annotation (%a) to the capture process. Currently this is broken.

The enclosed patch fixes this.

Setup:

# file todo.org
* TODO Talk to someone
   SCHEDULED: <2010-08-23 Mon>

# org-capture-templates
 ("z" "Conversation" entry
  (file+headline "~/conversation.org" "Conversations")
  "** Note taken on %U\n   %a\n   %?" :prepend t :empty-lines 1)

Steps for reporduction:

1. Restrict agenda to todo.org
2. Do org-agenda
3. Place the cursor on the above todo line
4. Trigger an org-capture for the above capture entry

Examine the entries in conversation.org before/after the patch is
applied. Note the absence/presence of the link to the parent todo entry.

* Conversations

** Note taken on [2010-08-23 Mon 03:58]
   [[file:~/todo.org::*Talk%20to%20someone][Talk to someone]]

** Note taken on [2010-08-23 Mon 03:42]

Jambunathan K.