The keyboard thing is a known bug - see the bug lists - that is, you should be able to just click in the doc to pull up the stylus keyboard as is normal. (There is an issue where the pointer to our GTKIMContext is somehow bad or missing so we can't invoke that keyboard upon getting the focus in the document, for those technically inclined to fix it.) (Hence why this is a beta, and not in the default "extras" repository - you accept the bugginess by installing it.) Try opening your RTF file on the desktop with AbiWord, then attach the file to a new bug at http://bugzilla.abisource.com - it should be able to open any RTF file.

Hope this helps!