I know the links are sometimes getting messed up -- I've fixed them in the new site, but not so easy here, so please just grin and bear it! In the meantime, if you're just posting a link -- eg http://www.travelfish.org then just paste the link in -- don't use the link button. If however you want to have a link title, like this: Travelfish then type the word (in this case Travelfish) then highlight it, click the link button, add the url and you should be set.
Apols for the hassle. Should have the new site up very soon.