Links are broken with line wrapping in OE. To correct this problem;
You must first have OE6 SP1 installed
http://www.microsoft.com/downloads/details.aspx?FamilyID=1e1550cb-5e5d-48f5-b02b-20b602228de6&displaylang=en

See the following page and download the Cumulative Update for OE6 SP1
An Overview of the Cumulative Update for Outlook Express 6.0 SP1 [331923]
 http://support.microsoft.com/default.aspx?scid=kb;en-us;331923