please?

Admin > tools > antispam tick the box for members only ;)

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Thank you for replying but I don't see any box in the antispam settings area for members only.

hi sir, maybe you can try this instead..
Tools> Global Settings> Antispam>Block spam referers (tick).

yeah I could try that, but I still need to make it so people have to register in order to post comments.

Can someone tell me how to do that?

My mistake, first install the basic antispam plugin that ships with the core, then hit it's settings and untick allow anonymous comments

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thanks a lot, had no idea there were plugins that came with it but weren't installed :)

Have done all the above now how do you create a register link

Assuming you have registration enabled ( admin > global settings > allow registration ), then you just need to add the user tools widget admin > blog settings > [blog] > widgets > add new > user_tools

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