Looking for coding help!

Heya =) So Im trying to do a petpage for a Background guide. I want to have larger screenshots of backgrounds, to be able to see them better. I can put all the larger images on the page directly... but I was thinking about displaying the smaller item icons (80x80px) on the page, and then when you mouseover, a larger image (300x300px) would popup. Ive been looking online and at other peoples petpages for ideas and trying to make it work, but nothing so far. If you are unsure what I am trying to do, you can take a look at fireynicxa's fabulous guide. http://www.neopets.com/~featherfloating So when you mouseover, another image appears temporarily. The thing is that I want that 2nd image to be larger, but her code seems to work that way since both images are the same size. Since neo doesnt let you do javascript and such, it would have to be done strictly with css/html. Any advice, pointers, etc are all welcome. :D
Forums: 

Definitely, all inspiration is welcome. Also please let me know what you think of my page so far :) ___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]
___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]

Oh thats cool :D I was basically thinking the same, along the lines of similar categories (indoor/outdoor) but also added others like holidays (halloween, christmas, etc), and underwater was seperated. And then yea, for the mouseover, I was gonna do screenshots of the BG with an invsi pet wearing it, so you could get a larger image, of like 300x300 to see it better. I actually have a bunch already done from a friend who had a guide like that, ( but got iced and quit and doesnt update). I also wanted to have the NC backgrounds in particular, but I guess if you cant sell them, you wouldnt add them? Unless I just use your guide for NP bgs (if you add the larger images) and make just an NC one...
[hr][size=11]Training, Luck & Medicine! ^_^ www.neopets.com/browseshop.phtml?owner=_jaspeh_&misc#c [/size]

Yeah, I'm afraid NC bgs just would scare my potential customers away. They come to the page and click all these cool NC backgrounds only to find I don't have them in stock :P But you making an NC one sounds great; our pages could be affiliates :o And I'll look into the popups more tomorrow, I really like the idea of having enlarged pics of them. I might message you for the pics you've got already (A) ___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]
___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]

I have the code that works perfectly for an image with a link on it, so you can steal that code if you want and yea, Ill also send you the page of BGs already screenied. I forgot to preview the code before I PMd it to you, hopefully it worked :P
[hr][size=11]Training, Luck & Medicine! ^_^ www.neopets.com/browseshop.phtml?owner=_jaspeh_&misc#c [/size]

The CSS worked ok, but the HTML kinda failed :P Try sending it again and I will take a closer look tomorrow. Me and Kirsty are off to bed now...at 5am *oui* Good night (/morning)! ___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]
___________ [color=gray]Chris, aka wushu_soldier[/color] [size=11][i]Sniper, maller, reseller Background shop of X-Mart Neomallers graphics designer[/i][/size]

im off to bed too... 11pm! LOL ill send it tomorrow :D and Ill PM her back tomorrow too, nite =)
[hr][size=11]Training, Luck & Medicine! ^_^ www.neopets.com/browseshop.phtml?owner=_jaspeh_&misc#c [/size]

Pages