Wp estore and terrible looking thumbnails? No support from Tips and tricks hq!!!

Hello everyone, I have the wp e-store plugin and I am using the fancy product 6 shortcode. I did some custom tweaks to the fancy 6 styling like I change the white to brown and the the size of the thumbnail display from 100 by 100 to 200 by 200 in the plugins style sheet for that custom display option. Anyways, now that I have changed the size of the thumbnail, all of my thumbnails are blurry no matter how I re size them or what i do they always show up blurry. So, I asked for support from Ruhul and ivey at tips and tricks and they just locked me out of the forums and said that they cant provide support to me because I asked more than 4 questions in thier support forums and they are trying to refund my money all because I asked what piece of code supports the thumbnail re-size for products display, anyways, so I have a page full of tee shirts with blurry images and I am not sure what timthumb script or re-sizer thing is controlling that but I need to find out, can anyone give me an idea of the problem and where to fix it? Also, I highly recommend you do not ask any more than 2 or 3 questions in there forums if you own one of their products as they will kick you from the forums for having a problem that they need to fix anyways… Just a heads up. But anyways, I need to get these images clear and viewable, any ideas?