How to increase number of connections to 7.2.1

I need to increase the number of connections to PostgreSQL 7.2.1.

I have tried changing the value of max_connections in Postgresql.conf.  It was commented out (as are all other entries except "tcpip_socket = true").  Setting it to any other value that the default 32 resulted in the server failing to restart.

I know we should upgrade from 7.2.1 and that is going to happen soon, but this is a production server and I need a solution sooner.

Thanks in advance,

Edwin New
Analyst Programmer

Toll - Integrated Business Systems

43 - 63 Princes Highway,
Doveton,  VIC.  3175

Ph:     03 8710 0858
Fax:    03 9793 3970
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Email:  edwin_new@toll.com.au