lameboy question

first off i cant find a direct answer yes or no, i have NDSi with acekard2i running Akaoi,can i get gbc games to work on my dsi by putting lameboy on to my Acekard??

Yes, it should work fine. If you couldn't find an answer, why didn't you just try it? Here it is if you don't already have it.

was worried in case it messed up my acekard! how do i open the file as its a 7z file tried these kind before and it wouldnt work (husbands psp)

Don't worry about messing things up, that's almost impossible.
You need to extract the 7z using Winrar. If you don't have that, you can get it here (click "Downloads" and then choose the top link to download it).
Here's a tutorial on how to use winrar (although the tutorial talks about RAR files, it works the same for 7z files).

done that bit now thank you!i have opened the file and there is about 50 files in there do iput them all in to a folder and then rename it??Its ok got it sorted now thankyou !!!!

Great! If you have any problems, just ask here.