Problems with translation

Hi.

I am translating the app in french.

But there are some string, that I can not translate : "s ago", "m ago", "h ago".
I suppose that there is a variable before. But, the variable should be replaced by the printing function (like GetText and printf of C).
Like that, I can translate in french : "%var s ago" -> "depuis %var s"

I am also wondering if PM means "Private Message" in "PM TO" and "PM FROM".

Thanks.

[n8fr8]

Sorry, that was me being lazy. I will clean up the strings to make it easier. Also, will be adding the project to transifex.com which makes it easier to localize.

PM does mean Private Message