It seems like I mistakenly included haxrcorpttf font instead of haxrcorp4088 into the archive with slimfoo on DA, so thanks for finding this out. This skin is pretty outdated anyway, and I'm going to update it eventually.
Basically what happens, is that this version of slimfoo on DA tended to use haxrcorp4088 as playlist font and when foobar wasn't able to locate it, it automatically switched to the default windows font (Arial I guess). That is what was happening on your first image. But after you manually changed it to haxrcorpttf 12 it started to look like as in preview. So you've resolved your problem with font by yourself.
That said, both "haxrcorpttf" and "haxrcorp4088" looks same, except haxrcorpttf is truetype and haxrcorp4088 is bitmap. That's why there were size differences in them.
You can continue to use this skin with haxrcorpttf with 12 pixels or download and install haxrcorp4088 from here
www.mediafire.com/?13p9ct6fv97… and use it with 9p size, which probably the only available size for it.
Aside from that in preview, status bar and status pane were turned off - preferences/display/status bar - "show status bar" & "status fame". Also, in preview I've had grouping by the albums [ / %album%] -
goput.it/itx3.png .