Sorry - my mistake.
Found the subs.php file, CHMODed to 777 and the problem is solved 
Thanks a million for the help!

Thanks for answer!
I´ve CHMODed the index.php file in SMF to 777, but now I get:
Problem is: there doesn´t seem to exist any such ...sources/subs.php file. At least not in the SMF forum i´ve got installed.
Any idea what´s wrong?

Hello again.
I´ve been trying to install JSMF on Joomla with CB installed. Patching Joomla Source Files was OK, and I got "done", but when I click on "Patch SMF Source Files" then I get:

The thing is I have CHMODed the index.php file in SMF to 755 (-rwxr-xr-x) but I still get the error message.
Anyone who can help me out on this one? Is the SMF-patch source file available anywhere for downloading (as the Joomla-patch source file)?

Regards 

Hi again. I´ve searched the forum for an answer to my problem, but no luck. Could you point me to some topics that include the solutions you mentioned? Thanks.

Hi.
I´ve just installed JSMF with CB and rt_versatility theme for both Joomla-site and SMF, and everything is working fine - except:
when in the wrapped SMF the header changes from my site header to SMF header (original versatility header).
Is this supposed to be like that or is there a way to give SMF the same header as the site?

Chiao.