Plotting questions: changes in plotting between 5.9.1 and 5.9.2

Hi,

I've recently upgraded from 5.9.1 to 5.9.2 and noticed several changes
in running a solution I've been developing.  Having to rewrite my batch
files slightly caused me to learn some new functionality I didn't know
before!!!  (Good)  However, I've also found that plotting no longer
produces a maxima.gnuplot file in the working directory.  

I used to use this file to save my plot data, and then plot in another
package, however without the file I'm a little stuck.  Is this file
saved elsewhere in 5.9.2?  Is this option available?

Incidently, how do I plot two vectors against each other using maxima
and gnuplot interface?  I've never figured this out.  For example, I'd
like the functionality of octave's plot(x,y) for two vectors.  

Thanks,

Pete