Hello Stephen Heverin,
Regarding the entered data uninstalling RadEditor for MOSS will lead to the following resul:
(a) If you are in list items, wikis, blogs, etc.... scenario the content will not be lost and you can use the default MOSS content editor to change it. The reason for this is that the WCM Field editor and Lists (wikis, blogs) editor actually have no content storage - instead they use the already available publishing field (WCM) or the list column (Lists) to store their content.
(b) If you are in a web part scenario the content will not be lost unless you close or delete the web parts. However, you will not be able to see the content - the web parts will show just an error message. If you want to preserve the content you will need to create new web parts and move it to them.
the Telerik team
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