mms got the cabs, don't know how to use em

[skreets08]

so i bought this xv6700 apache on ebay flashed to cricket, i got the thing to work, text, web, talk, the works, but i don't know what the problem is when it comes to the mms, i guess i can recieve but not download, i'm not sure about sending, but i go to the zip files and find 2 zip files, the least important is one titled "standard_skin.zip" this is used for the opera beta browser, which i don't use since it's sooo slow, the OTHER zip is titled "Titan cricketcabs.zip" so when i open this file, i find three different cabs, one is titled "dcd Titan Carrier - Cricket.cab" the other "Titan MMS Fix with Mortscript.cab" and the last "Titan_Arcsoft 5.cab" so i went to download the second file, "Titan MMS Fix with Mortscript.cab" and it says "The previous version of Crwinger MMS Fix with Mortscript will be removed before the new one is installed. Select OK to continue or Cancel to quit." i push cancel since i'm not sure what is the best course of action, then i try to download the third file, "Titan_Arcsoft 5.cab" and it says "The previous version of crwinger Arcsoft MMS 5.0.31.19 will be removed before the new one is installed. Select OK to continue or Cancel to quit" once again, i quit, i don't wanna break the phone, please advise me as to what i should do, i'd appreciate this ALOT, thank you