Add modules for T-shirt sizes

Hello... we need some fast work for an OSC job. Pretty easy for someone who knows what they're doing. First of all, we have a script (already created) that send XML orders to our warehouse. It needs to be updated because they have changed the server that accepts the orders to HTTPS so we need to post to a new URL. I don't know how to do it because I think you need to change the connection method from pconnect to something else. Also...I need to install product attributes in OSC for shirt sizes because we are selling T-shirts. I just need the 4 sizes added to the shop and send to data table (MySQL) When this is added, I need you to update my XML that sends orders to include the size info when shirt is purchased. Size is an attribute that is already in our shop just not set up properly on the page. Also, we're doing a special buy 5 or more CDs get a free T-shirt and free shipping, so we need this added to the XML order (if order $ total is more than X dollars, T-shirt and free shipping is automatically added to their order. we have done this before so the code is already there... but I need to have a way for them to specify the size of their free shirt) We hope to have this up on Monday or Tuesday. I will be close on hand to help with any question. Our shop pages are a bit convoluted so be careful. Thanks and good luck!