Hidden Files

Hello everyone, new here in this forum and with my imac. I have a problem changing file permissions. I cant delete a folder that apparently is empty but if I list the contents with the terminal using ls -aF i get several directories and files with an * at the end. now i've tried chmod a+w and several variations to manually delete them with rm file, but i get an "Operation not permitted". Can anyone help me ?

the * shows that it's an executable with a -F

you could try a rm -rf <directory>

but the "Operation not permitted" tells me that you don't have privs. Might have to sudo.. now... why are you deleting them?

those files were a part of project with the extension .svn-base, but i don't need them anymore and i'm the only user, besides these files were created in a Windows environment...

got rid of those files...thx a lot

just a side question, why is it that when i type su and enter my password it turns out incorrect?

Password:
su: Sorry

You can't su as you, you have to sudo it.