Ive got a rim that you cant buy anymore unfortunately.Any ways i bought these off a guy one of the rims he told me was professionally fixed.Come to find out later on now the tire wont hold air.Please !!!!The rim has two small cracks.welding still on surface.Where can i get this rim fixed right???

For a start, you should indicate the YEAR of that Cadillac.
Now, I had a similar issue with a Sunfire 2001. I had to change a damaged rim and at the first moment I only had available information a rim for a Cavalier 2001 for sale which LOOKED. siimilar. So, believe it or not, NO ONE, not eeven the parts sales department of an official GM dealer could tell me for sure. They told me that were too old cars, a salomonic answer! So, finally went for sure and bought the original rim for a 2001 Sunfire...
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You might copy on cardboard the 2003 Malibu rim and compare it with the Cadillac's or buy the original

you can get rims rerolled you need to google rim repairers and they will advise you wether it can be repaired or rerolled but for safety I would ad vise you to purchase a new rim

you can buy a can of goo like solution that you put in your tire and as you drive around it sets a seal, that should work,you could buy it at any automotive place, such as a walmart automotive section. if not, depending on the size of the tires you may be abled to buy a tube to put inside them.

try your nearest salvage yard or order online dont know where you are im in canada so cant tell you where to go for sure

from the little info you posted i can only guess its a standard rider that the rims slide on the axle ? there is several ways to try and coax the rim off or least help to get the rust loose that is holding it on ... best thing to try is get some good spray penatrating oil like pb blaster . i had the same issue on my rider and tried some stuff called crc freeze off . yea its a joke the stuff didnt do any good ... tip the flat side of the rider up on some bricks or blocks so its up n the air some and spray the pb blaster down the key way on the rim that locks the axle and the rim togeather . do so just till the spray starts to run out so you have that slot full , then repeat every so often so that you can keep the slot full and help push whats at the bottom on thru . also can try taping on the inside of the rim best place is right next to where the axle and rim meet this is the strongest point of the rim . you may also try to use a small propaine torch or regular torch just watch how hot you get the rim , ive see this done also to remove rims . worst case like i had to do is just remove the tire while the rim is still on the rider and fix the tube and put it all back togeather ... i know its not something you want to hear but it may be your only choice .. i have bout 4 axles sitting with rims on them that i cant get to come loose right now , they may sit like that till spring at this point , since winter is right around the corner ..

moisture in a mounted tire will rust a steel rim from the inside out with chrome it gets under the chrome plating and attacks the steel rim which peels,flakes and bubbles the chrome off if it hasnt damaged the outside of rim[meaning re chrome or replace rim] and only at rim lip u can sand lip till smooth and theirs a brown sealer that almost every tire place use and can be put on tire lip which seals stopping any rim lip leak this stuff is use for problems like yours imperfections on rims---doesnt matter where u live the moisture has nowhere to go they will have the moisture in there

Solution #1 isn't really the solution. Yes, the Blackberry 8330 only plays 3gp videos. However, it also only records 3gp videos, and the mobile version of youtube streams in 3gp. Not really a solution.
I have since gotten my BB replaced through RIM. I called Sprint a number of times and was eventually connected with RIM support. (If you call RIM directly, then you have to pay...if your carrier transfers you, then you don't.) I told the guy I spoke with that I work on these phones for a corporation HQ'd in Atlanta. I told him that I had performed many hard resets, reprovisioned the device for the network, and even wiped and reloaded the software 3 times. Nothing ever fixed it. He then shipped me a new phone. It don't believe it has anything to do with the size of the video, as some sites have suggested. I have taken video that was 1 second, all the way up to and over a minute. They never played.
So far, this new phone will play videos that it takes, however, youtube will still fail 90% of the time. I am begining to wonder if there is a fix. It seems that everyone I've talked too has eventually gotten thier Curve replaced, and never fixed.

Actually Ive just e-mailed Siver Cross online for replacement wheels, and they said £45 for all 8, inc p&p...

ask vodafone they can do it