If it isn't tall enough for quarts I hope you are not pressure canning in it. It is a cooker, and not a canner. Unless it can hold at least 4 quart sized jars it is not suitable for pressure canning. Your foods will be underprocessed and unsafe.
Anyway, there is a chart for pressure canning fruits.

Here is a link that might be useful: Chart for pressure canning fruits.

It is a Presto pressure cooker and holds 7 quarts or 9 pints, but my understanding is for BWB you need 1-2" of water covering the tops of the jars, and if I did this, the water would be all the way at the top of the canner and boiling over and making a mess. For actual pressure cooking, the instructions that came with the cooker say to only put in one quart of water, or water about 1/2 way up the jar height--the water does not cover the jars. This is how I have always done it for pressure cooking, then bring to a boil, allow free stream of steam to escape for 5 minutes, then put on the 15 pound weight.

I think the problem was we weren't quite clear on what you were asking. If you don't find pressure times for a particular product but would rather pressure can, then all you can do is use the boiling water bath time provided. Don't reduce it. There's no conversion chart because each product differs in pH, density, water content, etc.

The standards for venting have changed, though many of the manuals haven't been updated. Allow steam to escape for 10 minutes rather than 5.

Carol

Thank you, Carol, that's what I needed to know. I thought maybe there was a conversion chart, but it makes sense that there isn't. I found the time for applesauce on Presto's website (I wasn't able to link to Linda Lou's site, for some reason)

For some reason I couldn't make the link work either. Maybe the site is down for maintenance or there are temporary server problems.

Anyway, you can still view the chart Linda Lou provided with Google's cache. Take a look at the link I provided and click on "Cached" at the bottom of the first entry. That will take you to Google's picture of the page. (I hope that's clear.)

Carol

Here is a link that might be useful: Dial Gauge and Weight Gauge Charts for Fruit