In TeamSite content stored in the form of data capture record ( xml
format).In AEM content stored in the form of properties's value in JCR
nodes.Create a mapping between dcr (xml) nodes to jcr
nodes/properties.Then you can create a custom java application that can
read xmls (dcrs) from TeamSite as an input and can create JCR node tree
as per mapping and store content in the form of properties values in
created jcr nodes in AEM.
Touch UI provides lots of new features also it is easy to develop
website using Touch UI.Please refer below urls for more
details.https://forums.adobe.com/thread/2329927AEM | Touch UI – What and
Why? – Need is the mother of invention …
Since you used conversion tool to convert classic ui dialog to touch ui
dialog, did you have any custom xtype in your classic ui dialog?If yes ,
may be that is creating a problem after conversion in touch ui dialog.