Ok, this should do everything you want. Give it the same stuff as before 
(tagged with $:/tags/ViewTemplate and the field list-before with the 
contents $:/core/ui/ViewTemplate/title)

\define again()
<$list filter=<<First>>><$link to=<<currentTiddler>>><$view field='title'
/></$link> > </$list>
<$list filter=<<Extra>> emptyMessage=''>... > </$list>
<$list filter=<<End>>><$link to=<<currentTiddler>>><$view field='title'/></
$link> > </$list>
\end

\define finalFilter()
<$set name=First filter='$(TheFilter)$ +[last[]]'>
<$set name=End filter='$(TheFilter)$ +[butlast[]]  +[butfirst[]] 
+[first[3]] +[reverse[]]'>
<$set name=Extra filter='$(TheFilter)$ +[butlast[]] +[butfirst[]] 
+[butfirst[3]] +[limit[1]]' emptyValue='[is[system]!is[system]]'>
<<again>>
</$set>
</$set>
</$set>
\end

\define breadcrumbs()
<$list filter='[is[current]tags[]]-[[$:/tags/SideBar]]' emptyMessage=
'<br><<finalFilter>>'>
<$set name=TheFilter filter='$(TheFilter)$ [<currentTiddler>]'>
<<breadcrumbs>>
</$set>
</$list>
\end

<$set name=TheFilter filter='[is[current]]'>
<<breadcrumbs>>
</$set>


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