yessir. the deal is that you have to use nfshtool to open the jersey fsh file. after you open it you have to overwrite the blet files (with the alphabet on them) with the live04 style blet bitmaps and then open the index.fsh with notepad and change the blet dimensions from 128 X 64 to 256 X 64 and then save it. its kinda tricky to sift through the index.fsh when its opened with notepad so check this out below:
NFSHTool generated file -- be very careful when editing
saserd.fsh
FSH
SHPI 4 objects, tag G346
BUFSZ 727968
NOGLOBPAL
buni 0000-%d.BMP
MBP+4 60 x4 512 512 {129 343 0 16384}
ETXT 69 64 16 {0 0 0 0}
EAGL64%20metal%20bin%20attachment
%20for%20runtime%20texture%
20management%00%00%00%00%00%00
BIN 7C 176
ETXT 70 buni%00%00%00%00%00%00%00%00
TXT 6F 120 0
,frnt,back,nfrl,nfrr,nfrc,nbkr,nbkl,nbkc,bjer,bshr,
MAX:cnvDXT3|0,15|0,HIGH:cDXT1|0,15|0,
MED:DXT1|1,15|1,LOW:DXT1|1,15|1%00
!PAD 8 4275792045525453
:!: blet 0001-%d.BMP
MBQ+3 ED x1 256 64 {0 0 0 4096}
alpha 0001-%da.BMP
ETXT 69 64 16 {0 0 0 0}
EAGL64%20metal%20bin%20attachment%20
for%20runtime%20texture%20management%
00%00%00%00%00%00
ETXT 70 blet%00%00%00%00%00%00%00%00
TXT 6F 46 0
,MAX:4444|0,HIGH:4444|0,MED:4444|0,LOW:4444|0%00
!PAD 13 00000000000000000000427579
frnt 0002-%d.BMP
MBQ+4 FB x3 128 128 {129 343 0 12288}
PAL 2A 256 1 {256 0 0 0}
BIN 7C 64
ETXT 70 frnt%00%00%00%00%00%00%00%00
TXT 6F 88 0
,nfrl,nfrr,nfrc,MAX:32|0,4444|0,HIGH:cDXT3|0,4444|
0,MED:DXT3|1,4444|1,LOW:DXT3|1,4444|1%00
back 0003-%d.BMP
MBQ+4 FB x3 128 128 {72 28 0 12288}
PAL 2A 256 1 {256 0 0 0}
BIN 7C 64
ETXT 70 back%00%00%00%00%00%00%00%00
TXT 6F 88 0
,nbkr,nbkl,nbkc,MAX:32|0,4444|0,HIGH:cDXT3|
0,4444|0,MED:DXT3|1,4444|1,LOW:DXT3|1,4444|1%00
#END
you can see the blet part that needs to be edited in the above part with the exclamation mark smilies. hope this helps!