Yes you also can say sevgilerle.. or sevgilerimle..

Anladım, Çok tşk Rain.

Rain/Canli have I told you both how fantastic you are,
I cannot tell you how much I appreciate your help.

I am nearly ready to send my card,

Tamamlayici detaylar haric bitti (it's done apart from the finishing touches) i hope this is right lol....

Thanks a lot
çok teşekkür

or as we say in Ireland Go raibh mile maith agat ! (a millions thanks to you)

correct..

Any time hun,glad that we can help,Rain included too i'm sure,lol

great, i actually feel like i am learing some now lol..