Public - The Lobby - Shop Advice

Get advice and help. Anything and everything malls/shops/upgrades/graphics advice is here. As someone great one said: I know half my advertising doesn't work. I just don't know which half!

Do you upgrade with or without stock?

I'm just curious what works for you all. Currently I'm trying to expand my stock and upgrade and I'm losing more than I'm gaining xD On one hand its causing me to go broke now but on the other hand I don't want to have to buy mass quantities of items later on. I doubt I'll ever fill my entire shop but I'd like to have 2 of 1000 different items eventually. :/ Let me know what you think works best thanks :)

Creating a mall banner and confused on coding. Any advice?

I've been researching malls left and right for the last 2 months because I've always wanted to start or join one. I joined one of those malls with small sized shops since mine is currently only size 80 and after a while I decided to make my own. I made the banner itself and now I'm working on the coding and I can't get the coordinates part right. I have no idea what I'm doing wrong with it either. Does anyone have any advice or know of any tutorials on coding a mall banner that could help me? At this point I'm open to any advice.