Decoding encrypted messages

We need some help decoding these two messages (we are participating in a competitive game and these two items are stumping us): First message: LEWBA OKPKL MPZYQ OGRLD OBKPE RKEUZ GJXBJ AFZWW FAXAK QARSI KTKTO WKEWH VFFWM PLEFQ WTSPV AKMAP WQZAX XUPLE SPSRK PAKOW KKGPS QGLEX BKJJS NCBLW LQZAL FEALE WXSZC CJLMJ VXFZU ESNSZ LAJLX PZBUE LVEWV BAPSM WNXBU PDLUW LFGJX LJPZB UKFCW NWKUA SRKPA KOWKZ GJKFV AJBVW XXAND VUKKJ GLGIA PSKLK OKXKJ FLOKF RATBU WMPWK XQZAM KARWO KELVG BLBPW KTZEU EVNST KLWLH HWCJK EXDHG SWNLE WSGOD ZOBDH VLFAL EWOWZ JALFK BJBWH SKUAJ OGYCP and Second message: OFGVD DOAWO LLIHB SYXFS LNTIT NIBKU ZTFGR IKZSB XKHKG CFFMH KIURP WLEJV NMICJ YMKII KHASF QSRUY XWFSV IUATM SDTZF EDZMB KSVFE TURWG GBMVR ZLOFL PJZRN SAWTI XVITX SPSAG IATHH KSTTE GZMAW TIYKL KVHZJ WZXHN MGFSU JSAYI HGWFU FSKWD AWAFE DZLSA JKTDM KVQAS THFNZ VOULW WJFXM SVEIS ZSZLS GHXTJ IZIOM KBNEA THGSF ISKOT MCSJM MFTHI RKGNH FNLPW ULJJK WKIBL ZMXDA RPZWX BFEDZ LSTAO WZGNX HOGWK KHKJS OHTFT EYMBL ZMBFR RHBGL QSKOZ EZZGK PKOZL SKHGN EGSMZ ALIWP ITHIK LZNRL SIRAS KTDPR ILTWA YKOYY DHGZY SRGRR LSOFZ NYXUG GOQVA THHZW MCGLU MHWJA TWITX SJFMY JPEMB YSOWV AZTFW UCWJO XXCSF WSPMU YGOAS NCEGO GSFLT KHKVS EMTFK OXWOK KISXE OWHZW AJTRK XXXX We do not know what type of coding these were encrypted with, but there was an earlier message which we decoded and will share the results with the winning freelancer. We need this done before Noon on Sunday, March 25...that's really soon.