Self Service issues

Hi all

We use self service at our place. Recently we noticed a cahnge in the self service page. The worklist area, vacation rules disaapeared suddenly. There was no major change in the patch levels, but we had to bounce the apache server once. 

Was that the reason for this ?

How can i restore the self service options like worklist,vacation rules

I don't see personalize link anywhere, how to enable that? I enabled the profile value" Personalize Self service" to yes, but still i don't see

thanks in advance

Vamsu