should i change my webhost if i want drupal to run well?

hello,

i just started installing drupal, and have it running now so far, but only with the /sites/default/files directory given '777' access to all, as that's the only possibility for drupal to work.

my provider replied, that it's ok to give 777, because the system is isolated, and I really belive him, because of several errors i got concerning the

disabled ini_restore and set_time_limit,

which have to stay disabeld as the provider states.

as far as i can see, this is a quite safe mode, although safe-mode is turned off, so i repeat my general question:

should i change, if i want to run drupal with some modules like FCKEditor and enabled uploads and images?

thanks

:-jo