They probably won't do a transfer any longer via phone - breaks all security rules.
Try accessing Internet banking with the Google Translate toolbar add-on activated if you ned to translate the Spanish. Works best in Internet Explorer.
You could try calling them though - the info on how to call your branch is still on your original thread here
http://www.eyeonspain.com/community-forum/32260/la-caixa-email-address.aspx