yes, there shall be no issues, though all past changes will not be reflected, i.e. some items might be missing in translation and are displayed in English. You can complete the language pack by entering Languages menu item in Host menu, selecting the Resource verifier to get all files to edit and using the language editor to complete the package (in System mode). Afterwords export the language file to create a updated language pack, you can upload to the language pack directory here on www.DotNetNuke.com.

ok, language pack is approved. What do you mean by "Home" button? Home tab is derived from portal template, and there is currently no solution built into DotNetNuke to allow for ML page names...