konnichi etc

Hi. I've searched everywhere, but I can't find the answer.
konnichiwa - we all know it comes as 'this day' etc. etc. You already know.
I've seen somewhere 'konnichimade' - I take this to mean:
'Until this day'
My question is 'Would 'konnichikara' mean "from today"'? (taking 'kara's' form of 'from') It would be useful in a vow, like 'From today I will stop drinking sake'.
If I am correct in this, please tell me. Thanks.

Yes, but kyô kara is far more common.

Thanks Glenn.
Kyou kara. I will use that.

Arigatou Gozaimashita. (hope it is the right time to use mashita instead of masu)

No point making another thread.
Is gozaimashita used for something already done? And gozaimasu for something that has been done only a little while after. I haven't got a clue on this bit, so if anyone will help...
Might have a better chance in the grammar section.

yes, mashita is past tense. so if they did a single action, mashita. masu would be used if you thanked them for something that they were still doing. like a continuing action. but i honestly cant think of an example where masu would work, but mashita wouldnt... i think mashita is pretty universal.