[TYPO3-linux] mkdir (...) Permission denied

[Klaus Musset]

Hello list
I'm facing this problem again and again.
I'm running typo3 on a shared server
SERVER: SERVER_SOFTW: Apache/2.0.50 (Linux/SUSE)
SERVER: GATEWAY_INTE: CGI/1.1

I downloaded the new version typo3 411 source with dummysite zip.
I unzipped it on my PC and uploaded it by FTP to the server.

When I call typo3 I get this message for all the directories typo want s 
to create.

Warning: mkdir(/srv/www/htdocs/web102/html/411/typo3temp): Permission 
denied in /srv/www/htdocs/web102/html/411/t3lib/class.t3lib_div.php on 
line 2522

Normally I created these directory myself and made them readable thru 
FTP (777).
Then I used to have a lot of problems later to upload files and extensions.
I talked to my provider, but he is very concerned about switching off 
the safemode.
How is it possible to rum typo3 in a save way and still use it's features.
Thanx
Klaus Musset