By "not working" do you mean you get something like a 503 server error page? I think it's 503 that happens. Anyway the thing that pops in my mind when permalinks don't work is that your server doesn't support "clean" URLs. To test this theory go to your "Blog settings -> pick a blog -> URLs" subtab and for every section select the option that has params in it. Typically it will be the top radio button option yah? Anyway it will be the option that has stuff like index.php?thing=value instead of stuff like index.php/thing/
Oh and the same solution might work on your comments form as well.
General Support
b2evolution CMS Support Forums
By "not working" do you mean you get something like a 503 server error page? I think it's 503 that happens. Anyway the thing that pops in my mind when permalinks don't work is that your server doesn't support "clean" URLs. To test this theory go to your "Blog settings -> pick a blog -> URLs" subtab and for every section select the option that has params in it. Typically it will be the top radio button option yah? Anyway it will be the option that has stuff like index.php?thing=value instead of stuff like index.php/thing/
Oh and the same solution might work on your comments form as well.