Is she the one whose credit card use came into scrutiny and was that part of the campaign you mention?

Yes. She was sloppy and used the governmental credit card for personal expenses. IIRC, the investigation launched reached the conclusion (long after she had dropped out of the race and Göran Persson instead had become the chairperson and prime minister) that she was far from alone in doing so both in the socialdemocratic and the previous right bloc government. And when every krona had been counted the government owed her something like a couple of hundred euros. The media hype around this and the backstabbing from party members (LTEs protesting and such) led me to believe there was a campaign against her.

However, against her does not imply for someone in particular. When she declined the stage became somewhat empty and there was a lot of speculation before Göran Persson finally emerged as the only candidate. Perhaps the party was simply not ready to handle having a women as the party leader.

Sweden's finest (and perhaps only) collaborative, leftist e-newspaper Synapze.se

due to Sahlin's complete sloppiness, incompetence and fascination for the kind of issues (Sweden has no culture and all Swedes are inherently racist, there are no more important issues than gay and transsexual rights etc)

This kind of person is pretty common in USA as well.  A couple of years back, I went to a meeting that was supposedly organized by the Greens of Minnesota.  It lasted over three hours.  Over a hour was spent debating how we could get behind the demand for reparations for slavery.  I wondered how we could extract money from people whose families had not even been in USA while slavery was still practiced.  Got me dirty looks.

BTW, in three hours there was NO discussion of environmental issues at all!!!

"Remember the I35W bridge--who needs terrorists when there are Republicans"