Jerome,
You can always edit your previous posts and fix the links. Did you make sure that you typed the URL correctly? Keep in mind that, however, once you go to edit your links a second time, the links themselves will not be active since the "URL code symbol" appears in your post for obvious reasons, mainly because for showing the part that's initially set as a hyperlink. To prevent that, just erase the URL codes in your posts so this way the links will be active again.
To eliminate any confusion, for me, all I do is copy and paste links and then they upload easily. However, if I ever edit my posts, the links would appear with the URL code [url=] and will not be active. Again, just erase those parts before you edit.
The last link works, but you'd have to register, unfortunately. Anyways, just try to fix up your links in the previous posts and perhaps compile all the links in a single post, if you can.
Trav.
