How to: Guest view thread content only, Not replies

[6piston]

Hi guys,

i hope this is the appropriate section to ask this.

i've been trying to find a way to limit a guest to view only the thread but not everything else below, like the replies and etc.

This is for my features section where i'd like to put only say 10 images for the thread then for the 1st reply the full content will be shown.

is there a way to do this or is there any plugin or hack to do it??

thanks
Tom