OK. Here's what the client wants:

1. The little orange rss feed links should go into a different place on the page that the aggregator module puts them- and one page will have several of them, links to feeds from other sections. So I need to be able to generate them myself in php, not just with the module automatically.

2. The rss feed links for most sections will go in the $node->links array. So that they'll land on that part of the page.

3. Some rss feeds will be a merge of several different taxonomy sections, ordered by creation date. Can I do that programmatically with calls to the aggregator module or something like that?

4. The rss feed links will go on node pages, not taxonomy index pages which is where the aggregator module (only) puts them by default.

I'm an advanced php coder but only used drupal (4.7.3) for a month. Basically if you can show me how to generate one of the orange links in php, (and merge multiple taxonomy terms into one), I can probably fake the rest.

If you can point me in the right direction for some of all of the above please do!