help needed in configuring presence

Hi,
iam trying to confgiure presence and followed the carefully.I installed libpcre too. but when i give make command i get error.Kindly tell me (i) where should the rpm package i.e. the libpcre should be installed ,pls tel me the location ii)what do i need to do to get my kamailio-1.5 running

pcre comes with most of the distributions. Search in yours RPM database the 'pcre' and you should get it. Might be called pcre3-devel or libprcre3-dev.

To get the presence working with kamailio 1.5.0 read the kamailio.cfg. There are comments explaining how to do it. Simply, by using sed, just do:

sed -i 's/#m#//g' kamailio.cfg
sed -i 's/#p#//g' kamailio.cfg

Note that you have to install presence modules before starting kamailio.