On Mar 6, 2008, at 1:39 AM, Satya wrote:

>  So I wasn't able make Slony 1.2.13 which is compiled against 8.3 to  
> work with Postgres 8.2. I  get this error
>
>  <stdin>:22: PGRES_FATAL_ERROR load '$libdir/xxid';  - ERROR:  could  
> not access file "$libdir/xxid": No such file or directory
>

Slony has two parts: the server component and the controlling daemon.   
You didn't build the server component for your 8.1 or 8.2 database  
server.