Wrong and/or missing elements for mapping

I'm feeding projects from this url:
http://www.scriptlance.com/cgi-bin/freelancers/rss_projects.cgi?show=50&...

Here it is an item if I retrieve the feed using Opera:

<item>
<title>Copy For Web Sites</title>
<link>http://www.scriptlance.com/projects/1239812610.shtml</link>
<description>We need copy for ...</description>
<bids>0</bids>
<avgbid>0</avgbid>
<featured>no</featured>
<urgent>no</urgent>
<certified>no</certified>
<category>Writing</category>
<pubDate>Wed, 15 Apr 2009 16:23:30 GMT</pubDate>
<endDate>Wed, 29 Apr 2009 16:23:30 GMT</endDate>
<guid isPermaLink='false'>1239812610</guid>
</item>

and here it is the "Feed item example" on the node/$nid/map page:

Array
(
    [title] => Copy For Web Sites
    [description] => We need copy for ...
    [options] => Array
        (
            [original_author] => ScriptLance Projects
            [timestamp] => 1239811211
            [original_url] => http://www.scriptlance.com/projects/1239811211.shtml
            [guid] => 1239811211
            [domains] => 
            [tags] => Array
                (
                    [0] => Writing
                    [1] => Graphic Design
                    [2] => Support
                    [3] => Graphic Design
                    [4] => Website Design
                )
        )
)

As you can see, something is going wrong.
Title and description are correct.
Link, guid and category (=> tags) are wrong.
There's no bids, avgbid, featured, urgent, certified, pubDate, endDate elements.

Is it a FeedAPI Mapper issue, or is it a Common Syndication Parser one?