error message at setup

Hi,

can anybody help me? I installed netjuke already on my PC at home -
without any problems. Now I try to install it on a server in the web
(Suse 8,1) and get this error message when I started the
<installer.php>:

Warning: Cannot execute using backquotes in safe mode in
/home/www/web3/html/installer/lib/inc-generate.php on line 158

Warning: Cannot add header information - headers already sent by (output
started at /home/www/web3/html/installer/lib/inc-generate.php:158) in
/home/www/web3/html/installer/lib/inc-generate.php on line 537

Warning: Cannot add header information - headers already sent by (output
started at /home/www/web3/html/installer/lib/inc-generate.php:158) in
/home/www/web3/html/installer/lib/inc-generate.php on line 538

I looked at this line but don't know what to do.

Thanks in advance,
Uwe



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