Where to verify I have the latest version

[Father Pig]

Thank you for the welcome! I've sort of done the instructions there, but I don't want to have to redownload the game if it can be avoided as I'm worried about losing my current savegame and I'm not very tech-savvy. I'll do it if I absolutely have to, but will I have to delete everything so far (as in, rip the whole lot out of /programs and into the recycle bin) or can I just redownload and drop it in over the top, replacing as needed? I downloaded from http://pkmnuranium.weebly.com/downloads.html originally but it's not clear if that version comes with the apparently-crucial official (?) 1.0.1 patch or not. Isn't there something I can just check to make sure I have this?

When I check for updates, it tells me I'm on version 1.0.4 and the current version is 1.0.4 so "no updates needed." Does this mean I'm up to date?