SharePoint Upgrade Question

Hello,
In our preparation for upgrading from 2007 to 2010 we ran our pre-upgrade checker and it returned the following:

Information Only : Customized field types that will not be upgraded.
 
A field type using custom Collaborative Application Markup Language (CAML) in itsRenderPattern element will not be upgraded as an XSLT-based field type. Fields based on this custom field type will be rendered without any custom formatting in SharePoint 2010. The following field types will not be upgraded:

HoldsField(Hold Status)
HoldStatusField(Hold Status)
HTML(Publishing HTML)
Image(Publishing Image)
Link(Publishing Hyperlink)
SummaryLinks(SummaryLinks)
LayoutVariationsField(Variations)
ContentTypeIdFieldType(Content Type ID)
BusinessData(Business data)
TargetTo(Audience Targeting)
 
What we want to know is what lists use these fields? We are trying to clean up these fields before the upgrade, and are at a loss as to what this means. We are trying to be pro-active about any problems we might encounter. Can anyone offer advice? Thanks so much!
LVL 7
janicet123Asked:
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QPRCommented:
This is how you upgrade them...
http://www.sharepointjoel.com/Lists/Posts/Post.aspx?List=0cd1a63d%2D183c%2D4fc2%2D8320%2Dba5369008acb&ID=357

As to which list is using them?
Have you installed any of the microsoft fab 40 or any templates from elsewhere?

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janicet123Author Commented:
Wow - that was amazingly fast! Thanks - very helpful. Yes we do have the Fab 40 templates installed, but I thought we pulled them all before we ran the upgrade checker. I will definitly look into this. Thanks again!
janicet123Author Commented:
very clear and concise - thanks again!
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