Need to change the URL to the new URL inside the SC workflow

Hi,

i need to change the old web link to the new link inside the workflow,

while creating the shopping cart the workflow ws14000133 is triggered ,the approvers will get a mail,in the body of the mail there is logon hyperlink will points to a web address, i need to change the web address.

we have to maintain in portal link.please give your valuable suggestions to solve this.

Thanks&regards,

sureshraj.M